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Japanese

日本語 — Japanese. Verb-final and consistently head-final, with postpositions, prenominal relative clauses and a topic particle doing work that English gives to word order.

This is read-only. A copy is an ordinary language of yours, editable everywhere, and it remembers that it started here.

Where the answers came from

37 answers are from a database — WALS, Grambank or PHOIBLE — and every one is checked against the published coding. 262 are from a reference grammar, and those carry the mark below wherever they appear.

from a grammar — no published coding exists for that question, so the answer is a judgement rather than a citation.

Written from: Shibatani, The Languages of Japan (1990); Hasegawa, Japanese: A Linguistic Introduction (2015)

Sentences

ProtoLingua reproduces 54% of a speaker's own translation of these seven sentences, counted word part by word part, in order.

This measures ProtoLingua rather than Japanese. The databases record where a marker sits and whether it exists, never what it is, and the app carries one suffix per category — so a language that packs several categories into one ending loses a mark on every inflected word. The translation uses the same words as the entry, so the comparison is of word order, agreement, case, tense and the marker forms.

NounPronounVerbAdjectiveAdverbAdpositionConjunctionDeterminerInterjection grammatical marker
The big cat quickly jumped into the green grass.
ookii
ookii
big
big
neko
neko
cat
cat
wa
wa
TOP
—
ga
ɡa
NOM
—
midori
midori
green
green
kusa
kusa
grass
grass
ni
ni
into
into
quickly
—
quickly
quickly
tobu-ta
tobu-ta
jump-PST
jumped

A speaker would say: ookii neko ga midori no kusa ni hayaku tonda — 60% of it comes out.

I am going home.
watashi
wataʃi
i
I
wa
wa
TOP
—
ga
ɡa
NOM
—
ie
ie
home
home
iku-te iru
iku-te iru
go-PROG
going

A speaker would say: watashi wa ie ni iku — 57% of it comes out.

She did not see the two birds.
kanojo
—
she
She
wa
wa
TOP
—
ga
ɡa
NOM
—
futatsu
—
two
two
tori
tori
bird
birds
o
o
ACC
—
miru-ta-nai
miru-ta-nai
see-PST-NEG
see

A speaker would say: kanojo wa futatsu no tori o minakatta — 56% of it comes out.

Did the old woman give the child a book?
toshiyori
toʃijori
old
old
onna
onna
woman
woman
wa
wa
TOP
—
ga
ɡa
NOM
—
kodomo
kodomo
child
child
hon
hon
book
book
o
o
ACC
—
ageru-ta
aɡeru-ta
give-PST
give
ka
ka
Q
—

A speaker would say: toshiyori no onna wa kodomo ni hon o ageta ka — 70% of it comes out.

My brother is a farmer.
my
—
My
My
ani
ani
brother
brother
wa
wa
TOP
—
ga
ɡa
NOM
—
nouka
nouka
farmer
farmer
o
o
ACC
—
is
—
is
is

A speaker would say: watashi no ani wa nouka da — 43% of it comes out.

The man who saw me left.
me
—
me
me
o
o
ACC
—
miru-ta
miru-ta
see-PST
saw
otoko
otoko
man
man
wa
wa
TOP
—
ga
ɡa
NOM
—
deru-ta
deru-ta
leave-PST
left

A speaker would say: watashi o mita otoko wa deta — 33% of it comes out.

I know that she left.
watashi
wataʃi
i
I
wa
wa
TOP
—
ga
ɡa
NOM
—
kanojo
—
she
she
ga
ɡa
NOM
—
deru-ta
deru-ta
leave-PST
left
to
to
COMP
that
shiru
ʃiru
know
know

A speaker would say: watashi wa kanojo ga deta to shitteiru — 56% of it comes out.

Rendered from the answers that govern an ordinary clause — order, adpositions, case, tense, agreement, plural, and where modifiers sit. The answers below that exist to demonstrate one feature each are left out of the rendering, because switching all of them on at once puts every marker on every word. The vocabulary is two dozen words, so anything with no word yet stays in English.

The answers

Syntax

Question Answer Source
In a plain statement, what order do the subject, the verb and the object come in? SOV — subject, object, verb (Japanese, Turkish, Hindi) WALS 81A, Grambank GB130
Do words like "in", "to" and "with" come before or after the noun? After — postpositions ("the house in") WALS 85A, Grambank GB074, Grambank GB075
Where do phrases like "in the garden" or "with a knife" sit? Always before the verb WALS 84A
In a question like "what did she see?", where does the question word go? Where the answer would go — "she saw what" WALS 93A
Does an adjective come before or after the noun it describes? Before the noun WALS 87A, Grambank GB193
Does a numeral come before or after the noun? Before ("two birds") WALS 89A, Grambank GB024
Do articles and demonstratives come before or after the noun? Before ("the cat") WALS 88A, Grambank GB025
Does a possessor come before or after the thing possessed? Before ("my brother", "the farmer's dog") WALS 86A, Grambank GB065
Where does the negative particle go? After the verb ("go not") WALS 143A
Where does a relative clause go? Before the noun — "who-saw-me man". Japanese, Mandarin, Turkish WALS 90A
What happens to the missing argument inside the clause? Nothing at all — the hole is simply left. Japanese, Mandarin from a grammar
How far down can relativisation reach? Down to obliques — "the house I live in". English, Basque from a grammar
Which side of the main clause does it go? Before — "when she arrived, I left" from a grammar
How is a yes/no question formed? A question particle (Japanese ka, Mandarin ma, Polish czy) WALS 116A, Grambank GB260
Where does the question particle go? At the end of the sentence WALS 92A, Grambank GB262, Grambank GB263
In "she gave the child a book", which one is treated as the object? The book. The child is marked like a direction — "to the child" WALS 105A
Where does a manner adverb like "quickly" sit? Before the verb from a grammar
Can a clause modify a noun? ("the man who saw me") Yes from a grammar
Can a clause be the object of a verb? ("I know that she left") Yes from a grammar
How is such a clause joined on? A little word introduces it — "that", "to", Japanese "to" from a grammar
Where does the complementiser sit? At the end of its clause — "she left that" from a grammar
What is the complementiser? to from a grammar
What is the relativiser? — from a grammar
Can a clause set the circumstances? ("when she arrived, I left") Yes from a grammar
How is a circumstance clause marked? A special verb form carries the link. Turkish -ip, Japanese -te from a grammar
What is the general-purpose subordinator? -te from a grammar
What turns a clause into a noun? koto from a grammar
Does a subordinate verb carry the same marking as a main verb? Yes — fully marked, exactly like a main verb from a grammar
Do subordinate clauses have their own word order? No from a grammar
Can unlike things be joined — a noun and a clause? No — only like with like from a grammar
Can a repeated verb be left out of the second half? Yes — "I ate rice and she, bread" from a grammar
How is a comparison made? With a case or adposition — "big from the dog". Arabic, Turkish from a grammar
What marks the standard of comparison? yori from a grammar
How is a superlative made? A separate marker — "the biggest" from a grammar
What is the superlative marker? ichiban from a grammar
How is "as big as" expressed? A dedicated equative marker from a grammar
What is the equative marker? onaji from a grammar
How does the language say "himself"? A reflexive pronoun — English, German from a grammar
What is the reflexive marker? jibun from a grammar
How does the language say "each other"? A separate reciprocal marker from a grammar
What is the reciprocal marker? otagai from a grammar
Which arguments can bind a reflexive? Only a subject — the commonest arrangement from a grammar
Must a reflexive and its antecedent share a clause? No — it may look up into a higher clause. Icelandic, Japanese from a grammar
How is "I have a book" expressed? "As for me, a book exists" — Japanese, Mandarin from a grammar
Are body parts and kin possessed differently from objects? No — one construction for everything from a grammar
Is a temporary possession marked differently from a lasting one? No — one construction for both from a grammar
Is a possession that has ended marked differently from a current one? No — the tense of the clause does it from a grammar
How is one part of a sentence emphasised? By a focus particle from a grammar
What is the focus marker? ga from a grammar
Is there a dedicated position for the topic? Yes — the topic comes first, whatever its role from a grammar
How is "there is a cat" expressed? A dedicated existential verb from a grammar
Do multiple negatives reinforce rather than cancel? Yes — "I didn't see nobody" means I saw nobody from a grammar
How is a negative command formed? A dedicated prohibitive form — Latin "noli", Greek "mē" from a grammar
Is the word joining two nouns the same as the one joining two clauses? No — joining nouns takes a different word from a grammar
Where does a degree word like "very" go? Before the adjective — very big from a grammar
How does the language say "the house is big"? Some adjectives take a copula and others behave as verbs from a grammar
Is "she is a doctor" built the same way as "she is in the house"? Different — a location takes another verb or none from a grammar
Is the word for "and" also the word for "all"? No — separate words from a grammar
Can an adjective stand without its noun — "the big one"? Yes, with nothing added from a grammar
Is the emphatic "herself" the same word as the reflexive one? Yes — one word does both from a grammar
Are there nouns that must always be possessed? No — any noun can stand alone from a grammar
In "she went to the market to buy bread", does "buy" carry its own tense? No — it gives up tense and agreement from a grammar
The word that opens a purpose clause tame ni from a grammar
In "I left because she arrived", does "arrived" carry its own tense? Yes — it is marked like any other verb from a grammar
How does the language say "I want her to leave"? There is no second clause: an affix on the verb means "want to" from a grammar
The "want to" marker -tai from a grammar
In "her leaving surprised me", what is "her"? A possessor, and any object a possessor too from a grammar
In "she made him leave", how is "leave" joined on? It simply follows, unmarked from a grammar

Grammar

Question Answer Source
Does the language distinguish singular from plural? No WALS 33A, Grambank GB044
Does it distinguish "the" from "a"? No WALS 37A, Grambank GB020
How does it keep subjects and objects apart? Nominative–accusative (Latin, Japanese, Turkish) WALS 98A, Grambank GB409
What tenses does the verb distinguish? Past against everything else from a grammar
Does it distinguish "is going" from "goes"? Yes from a grammar
Does the verb agree with its subject? No from a grammar
Does "be" appear as a verb — "my brother is a farmer"? Yes, "be" is a real verb WALS 120A
Which voices does the verb have? Active and passive — "the bird was seen" from a grammar
How is voice marked on the verb? A suffix from a grammar
What marks the passive? -rare from a grammar
Can a passive say who did it? Yes, introduced by an adposition — "by the cat" from a grammar
Which adposition introduces the agent? ni from a grammar
What number distinctions are there? No number marking at all from a grammar
Does the language sort nouns into classes? No Grambank GB051, Grambank GB052
Do adjectives and verbs change to match the noun's class? No from a grammar
Which moods does the verb distinguish? Statement and command from a grammar
Must a speaker say how they know? No — it is optional or absent from a grammar
Is there a way to say "make someone do it" on the verb? Yes — a causative form from a grammar
Can the verb promote an oblique to object? No from a grammar
What aspects does the verb distinguish? Ongoing against not from a grammar
Does "we" distinguish whether the hearer is included? No — one word for both WALS 39A, WALS 40A
Does the verb change according to who is being addressed? Yes from a grammar
Does negating a sentence change anything else about the verb? Yes — tense, aspect or agreement is marked differently under negation from a grammar
How many cases does the language distinguish? Ten or more — Finnish, Hungarian, and much of the Caucasus from a grammar
Where is the relationship between words marked — on the head or on the dependent? On the dependent — case on the noun, as Latin and Russian do from a grammar
How does a noun get its gender? By meaning alone — what the noun refers to decides from a grammar
Is there a way to say "X and those with X"? Yes, with a marker of its own from a grammar
Does the verb itself show whether "we" includes the hearer? No — only the pronoun makes the distinction from a grammar
What else changes when a clause is negated? A distinction the verb normally makes disappears from a grammar
How do the subject and object cases differ in form? Both are marked, and neither is built from the other from a grammar
Do pronouns take the same cases as ordinary nouns? The same — no split from a grammar
Does a command use a special form of the verb? Yes — a form used only for commands from a grammar
Is there a form for "may it be so" — a wish? No from a grammar
Does the past distinguish how long ago? No — one past from a grammar
Is the future a tense, or a mood? A tense — grouped with past and present from a grammar
Is there a perfect — a past with present relevance? No from a grammar
What does the article system track? There is no article from a grammar
Do possessed nouns change form? No from a grammar
Does the verb say whether the next clause has the same subject? No from a grammar
Does the verb agree with the object as well as the subject? No from a grammar
What kind of classifier does counting need? A numeral classifier — "three FLAT rice-paper". Mandarin, Thai, Japanese from a grammar
Is plural marking optional? Yes — used only when it matters from a grammar
Can part of a sentence be negated on its own? No — negation is always the whole clause from a grammar
Does negation take two parts? No — one marker from a grammar
Who can be commanded? The hearer only from a grammar
Are there verbs with irregular negative forms? None from a grammar

Morphology

Question Answer Source
What marks the subject of a clause that has an object? ga from a grammar
What marks the object? o from a grammar
What is the question particle? ka from a grammar
How much does the language bind onto a word? Agglutinative — affixes stack, one meaning each (Turkish, Swahili) WALS 20A
How is the plural attached? A suffix on the word from a grammar
What is the plural marker? -tachi from a grammar
How is case attached? A separate case particle after the noun WALS 51A, Grambank GB070
How is tense attached? A suffix on the word WALS 69A
What marks the past? -ta from a grammar
What marks the present, or the non-past? — from a grammar
What marks the future? — from a grammar
How is the progressive attached? A suffix on the word from a grammar
What marks the progressive? -te iru from a grammar
How is subject agreement attached? Not expressed at all WALS 26A
Is the negator a separate word or part of the verb? A suffix on the verb WALS 112A
What is the negator? -nai from a grammar
How is definiteness attached? Not expressed at all from a grammar
Do third-person pronouns distinguish gender? No — one word for he, she and it from a grammar
Is there more than one word for "you"? Several levels — Javanese, Thai from a grammar
How many degrees of distance do demonstratives have? Three — here, there, yonder. Spanish, Japanese, Latin from a grammar
Do demonstratives mark elevation or direction? No from a grammar
What does the counting system group by? Tens from a grammar
Where do numerals sit relative to what they count? Before — three dogs from a grammar
Are there separate ordinal numbers? Yes — first, second, third from a grammar
How are new words most often made? By affix — happy, unhappiness from a grammar
How is "one who does X" formed? -sha from a grammar
How is a diminutive formed? -ko from a grammar
How is an abstract noun formed from an adjective? -sa from a grammar
Are there infixes — pieces inserted inside a word? No from a grammar
Are the commonest words irregular in a way no rule explains? Yes — go/went, good/better from a grammar
Where do clitics attach? To a particular kind of word from a grammar
Where does a possessive marker attach? Nowhere — a possessor is a separate word only from a grammar
Do adpositions change form for their object? No — the adposition is invariant from a grammar
How is "someone" or "something" formed? From the question word — "who" doubles as "someone" from a grammar
Is "this" the same word standing alone as it is before a noun? Different words entirely from a grammar
Is the third-person pronoun related to a demonstrative? Related to the demonstratives generally from a grammar
Is there a way to say "two each"? Yes, by saying the numeral twice from a grammar
How does a pronoun become plural? A plural marker used only on pronouns from a grammar
Does a verb change shape for how many are doing it? No from a grammar
How is "she can leave" — ability or circumstance — marked? A separate word, as English does from a grammar
The form for ability or circumstance dekiru from a grammar
How is "she may leave" — possibility — marked? A separate word from a grammar
The form for possibility kamoshirenai from a grammar
How is "she must leave" — obligation — marked? A separate word from a grammar
The form for obligation nakereba naranai from a grammar

Phonology

Question Answer Source
What may a syllable look like? (C)V(N) from a grammar
Fewest syllables in a word 1 from a grammar
Most syllables in a word 6 from a grammar
Which syllable is stressed? No fixed rule from a grammar
Does vowel length change a word's meaning? Yes — long and short are different vowels PHOIBLE segments
Does consonant length change a word's meaning? Yes — geminates are distinct from a grammar
Does pitch on a syllable change a word's meaning? No tone PHOIBLE segments
Where does stress fall? No stress at all from a grammar
Can stress alone tell two words apart? Yes from a grammar
Are there nasal vowels distinct from oral ones? Yes — French, Portuguese, Hindi PHOIBLE segments
How do stops contrast? Voiced against voiceless — /b/ against /p/. English, French from a grammar
Are there ejective or implosive consonants? No PHOIBLE segments
Are there retroflex consonants? No PHOIBLE segments
Are there uvular consonants? No PHOIBLE segments
Are there clicks? No PHOIBLE segments
Do the vowels in a word have to match? No from a grammar
What happens to a voiced consonant at the end of a word? Nothing — it stays voiced from a grammar
How many consonants may start a syllable? One only — Japanese, Hawaiian from a grammar
How may a syllable end? One consonant from a grammar
Can a consonant be a syllable on its own? Yes from a grammar
Is there a minimum size a word must reach? Yes — a word must be at least two syllables or one heavy one from a grammar
Does the language repeat part of a word to change its meaning? No from a grammar
What makes a syllable heavy? Either a long vowel or a closing consonant from a grammar
What is the rhythm of the language? Mora-timed — the unit is smaller than the syllable. Japanese by some accounts from a grammar
Do unstressed vowels weaken? Yes — they centralise or drop from a grammar
What does the pitch do at the end of a statement? Falls from a grammar
What does the pitch do in a yes/no question? Rises from a grammar
How large is the sound inventory meant to be? Average — around 25 to 35 from a grammar
How many vowels? Five — the world's commonest system from a grammar
Are some vowels transparent to harmony? No from a grammar
Do neighbouring consonants become more alike? In place — "in-possible" becomes "impossible" from a grammar
Is a vowel inserted to break up an awkward cluster? Yes from a grammar
Are sounds dropped in fast or casual speech? Yes from a grammar
Which syllable carries the accent, when it is fixed? The first — Finnish, Hungarian, Czech from a grammar
Do long words carry a secondary stress? No from a grammar
Do tones change when they meet? No from a grammar
What happens to a borrowed word with foreign sounds? It is remade in native sounds from a grammar
Does the writing show predictable sound changes? No — spelling keeps the underlying form from a grammar
Does syllable weight matter? Yes — a long vowel makes a syllable heavy from a grammar
How long is a typical word? Two or three from a grammar
May a word begin with a vowel? Yes from a grammar

Writing system

Question Answer Source
What does one glyph stand for? A whole word or idea (Chinese characters, Egyptian hieroglyphs) from a grammar
Which way does the writing run? Left to right from a grammar
Are there spaces between words? No from a grammar
Is the end of a sentence marked? Yes from a grammar
What marks the end of a sentence? 。 from a grammar
Does the script have two cases? No — one set of letters from a grammar
How are words separated? Not at all — Thai, Chinese, Japanese from a grammar
Is vowel length written? Yes from a grammar
Is tone written? No from a grammar
How are numbers written? With digits, positionally from a grammar
Which way do multi-digit numbers run? The same way as the text from a grammar
How much punctuation is there? A full set — stops, commas, quotes, questions from a grammar
Is there a mark for a new section or paragraph? No from a grammar
How closely does spelling follow sound? Loosely — spelling records history rather than sound. English, French, Tibetan from a grammar
Are there conventional abbreviations? Yes from a grammar
Where did the script come from? Borrowed from a neighbour and adapted from a grammar
What was it first written on? Paper or parchment — free-flowing from a grammar
Do letters join or merge when adjacent? No from a grammar
Do letters change shape by position in the word? No from a grammar
Does the direction alternate line by line? No — every line runs the same way from a grammar
Has the spelling been reformed? Once from a grammar
Is there a calligraphic tradition? Yes — writing is an art form in its own right from a grammar
Is there a shorthand or cursive for fast writing? No from a grammar
What is the script called? kanji with kana from a grammar

Transliteration

Question Answer Source
Should the spelling recover the SPELLING, or the SOUND? The sound — write what is heard, and accept that it cannot be read back from a grammar
How should a sound with no Latin letter be written? The nearest letter there is — ʃ as "s". Simple, and loses the distinction from a grammar
Show hyphens between morphemes? No from a grammar
What gets a capital letter? Nothing — no capitals at all from a grammar
Mark the stressed syllable? No from a grammar
Write words in IPA instead of in your own symbols? No from a grammar
How are foreign names written? Respelt in the native system from a grammar
Are romanised proper nouns marked? No from a grammar
May diacritics be dropped when typing? Yes — the bare letters are acceptable from a grammar
Is there more than one accepted romanisation? Several, by country or era from a grammar
Is tone written with numbers rather than marks? No from a grammar

Semantics

Question Answer Source
How many basic colour words does the language have? The full set -- black, white, red, green, yellow, blue and more from a grammar
What does the counting system group by? Tens WALS 131A, Grambank GB333, Grambank GB334, Grambank GB335
Who raises a child? Its parents, in their own household from a grammar
Do they name relatives at all? Yes — some relations are still recognised and named from a grammar
Which relatives share a word? Eskimo -- close family distinguished, cousins lumped (English) from a grammar
Where does the PATH of a movement get said? In the verb itself -- "exit running" (Spanish, Turkish, Japanese) from a grammar
Which way does the future lie? Ahead is the future, behind is the past (English) from a grammar
Are some things possessed differently from others? No Grambank GB059
Does counting a noun require a classifier? Yes WALS 55A, Grambank GB057
Are there ideophones — words that depict rather than describe? A large open class covering sound, movement, texture and feeling from a grammar
How do ideophones fit into a sentence? Like adverbs from a grammar
Do ideophones break the ordinary sound rules? Yes — they use sounds and shapes no other word may from a grammar
How is location described? Relative to the speaker — left, right, in front from a grammar
Is the future ahead and the past behind? No — the past is ahead, because it can be seen from a grammar
Is a repeated time said differently from a single one? No — the same construction, and context does the rest from a grammar
How is time divided? Hours and minutes from a grammar
Are nouns and verbs clearly different classes? Yes from a grammar
Are adjectives their own word class? Yes, but a small closed set — Igbo has about eight from a grammar
How is the body divided into named parts? Finely — separate words for hand and arm, foot and leg from a grammar
Is there one verb for eating and drinking, or two? Two from a grammar
How are siblings named? By both from a grammar
Are maternal and paternal grandparents named differently? No from a grammar
Are left and right named after anything? They are simply words from a grammar
How does the language take in foreign words? Freely, adapted to its own sounds from a grammar
Which languages does it borrow from, and for what? Chinese, then English from a grammar
How many basic colour terms are there? Eleven or more from a grammar
Is blue distinguished from green? Yes from a grammar
How rich is the vocabulary for smell? Poor — smells are described by their source from a grammar
Is "with a friend" the same word as "with a knife"? No — company and instrument take different words from a grammar
Are red and yellow separate colours? Separate words from a grammar

Pragmatics

Question Answer Source
What is the topic marker? wa from a grammar
How does the language mark respect for the person being addressed? Whole speech levels -- the verb itself changes (Korean, Javanese) WALS 45A, Grambank GB415
Must a speaker say how they know what they are asserting? No -- a plain statement says nothing about the source WALS 78A, Grambank GB322, Grambank GB323
How does a sentence say "this is what we are talking about"? A separate particle (Japanese wa) from a grammar
How does a sentence say "this bit is the news"? A focus particle from a grammar
May a pronoun be left out when it is obvious who is meant? Subject and object both (Japanese, Mandarin) WALS 101A
Is there a separate way of speaking to particular people? Yes from a grammar
Are there little words whose whole job is managing the conversation? Yes from a grammar
How are people addressed? By title and role — teacher, elder brother from a grammar
Are some names or words forbidden in some company? No from a grammar
What does a greeting ask about? The time of day from a grammar
How is a request usually made? As a question — "could you" from a grammar
Do listeners signal attention while someone else speaks? Yes, frequently — Japanese aizuchi from a grammar
What does silence mean in conversation? Respect or consideration from a grammar
Does "yes" agree with the question or with the fact? With the question from a grammar
Do speakers use clicks outside words? No from a grammar
How many distinct registers are there? Several — Javanese has three or more, with different vocabulary from a grammar
Is there a separate language or register for ritual? Yes from a grammar
Do speakers use different forms depending on who they are? Yes from a grammar
Is there a distinct way of speaking to children? Both from a grammar
Is reported speech marked as such? Yes — a quotative particle or verb from a grammar
How is turn-taking managed? One speaker finishes, then the next begins from a grammar

What it is

Question Answer Source
Who or what uses this? People — a language that could have evolved on Earth from a grammar
What channel does a message travel down? Sound made with a vocal tract — every spoken human language from a grammar
Can the channel carry more than one thing at once? No — one thing at a time, in a line from a grammar
Are signals built from smaller, meaningless pieces? Yes — meaningless units combine into meaningful ones from a grammar
Can it refer to what is not here and now? Yes — the past, the distant, the hypothetical from a grammar
Can new messages be made that have never been made before? Yes — the set of possible messages has no end from a grammar
Is the link between signal and meaning a convention? Yes — arbitrary, agreed rather than resembling from a grammar
Do signals fall into distinct categories? Yes — discrete, one signal or another from a grammar
Is it learned rather than inherited? Yes — learned from others, and it drifts from a grammar
Can they see? Yes — sight is a main sense from a grammar
How long does one of them live? Decades, as people do from a grammar
Is there anyone else to talk to? Many neighbours, and constant contact from a grammar