Rodents: the biggest group of mammals and their ever-growing teeth, sentence 9

Each front tooth has hard enamel at the front and softer stuff at the back, so gnawing wears the back faster and keeps a chisel edge.

Who acts: front tooth, gnawing · What happens: have, wear, keep · To what, where: hard enamel, front, back, chisel edge

This is a sentence of the lesson «Rodents: the biggest group of mammals and their ever-growing teeth» of the biology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (front tooth, gnawing), what happens, when and where, as Mova's frames read it from the tree.

The tree

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Each	each	DET	PronType=Tot	3 tooth	det
2	front	front	ADJ	Degree=Pos	3 tooth	amod
3	tooth	tooth	NOUN	Number=Sing	4 has	nsubj
4	has	have	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	hard	hard	ADJ	Degree=Pos	6 enamel	amod
6	enamel	enamel	NOUN	Number=Sing	4 has	obj
7	at	at	ADP	_	9 front	case
8	the	the	DET	Definite=Def PronType=Art	9 front	det
9	front	front	NOUN	Number=Sing	6 enamel	nmod
10	and	and	CCONJ	_	12 stuff	cc
11	softer	soft	ADJ	Degree=Cmp	12 stuff	amod
12	stuff	stuff	NOUN	Number=Sing	9 front	conj
13	at	at	ADP	_	15 back	case
14	the	the	DET	Definite=Def PronType=Art	15 back	det
15	back	back	NOUN	Number=Sing	9 front	nmod
16	,	,	PUNCT	_	18 gnawing	punct
17	so	so	ADV	_	18 gnawing	advmod
18	gnawing	gnaw	NOUN	Number=Sing	19 wears	nsubj
19	wears	wear	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 has	parataxis
20	the	the	DET	Definite=Def PronType=Art	21 back	det
21	back	back	NOUN	Number=Sing	19 wears	obj
22	faster	fast	ADV	Degree=Cmp	19 wears	advmod
23	and	and	CCONJ	_	24 keeps	cc
24	keeps	keep	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	19 wears	conj
25	a	a	DET	Definite=Ind PronType=Art	27 edge	det
26	chisel	chisel	NOUN	Number=Sing	27 edge	compound
27	edge	edge	NOUN	Number=Sing	24 keeps	obj
28	.	.	PUNCT	_	4 has	punct

Pragmatics

form: statement
act: assert
voice: narrator
polarity: none
teacher: kept the draft

#	verb	tense, mood	who	what, whom	where	other	roles by
1	have	present	each front tooth	hard enamel	the front at the back and softer stuff		vn birth-28.2-1 «NP V NP»: agent=Agent enamel=Patient
2	wear	present	gnawing	the back		fast property	vn wipe_manner-10.4.1-1 «NP V NP.source»: agent=Agent back=Source
3	keep	present	gnawing not said here	a chisel edge			vn keep-15.2 «NP V NP»: agent=Agent edge=Theme

One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

Licence: CC BY-SA 4.0, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, mova-school-agreed-en.conllu) is part. The lessons were written for Mova's primary school. Sentence school:biology:316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth.lesson:9.

The tree: Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×1, R8-pos-agree ×1. The frames are read from the tree by Mova's frames reader (prag) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the release 0.4.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/biology/316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth/9/