Big snakes: pythons, boas and anacondas, and how big they really get, sentence 1

They have no venom; they hunt by grabbing prey and wrapping it in their coils, which is why they are called constrictors.

Who acts: Pythons, coils · What happens: have, hunt, grab, wrap, be, call · To what, where: venom, prey, coils, Pythons · Speech: someone speaks here

This is a sentence of the lesson «Big snakes: pythons, boas and anacondas, and how big they really get» 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 (Pythons, coils), 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	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 have	nsubj
2	have	have	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	no	no	DET	PronType=Neg	4 venom	det
4	venom	venom	NOUN	Number=Sing	2 have	obj
5	;	;	PUNCT	_	7 hunt	punct
6	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	7 hunt	nsubj
7	hunt	hunt	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	2 have	parataxis
8	by	by	SCONJ	_	9 grabbing	mark
9	grabbing	grab	VERB	Tense=Pres VerbForm=Part	7 hunt	advcl
10	prey	prey	NOUN	Number=Sing	9 grabbing	obj
11	and	and	CCONJ	_	12 wrapping	cc
12	wrapping	wrap	VERB	Tense=Pres VerbForm=Part	9 grabbing	conj
13	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	12 wrapping	obj
14	in	in	ADP	_	16 coils	case
15	their	their	PRON	Case=Gen Number=Plur Person=3 Poss=Yes PronType=Prs	16 coils	nmod:poss
16	coils	coil	NOUN	Number=Plur	12 wrapping	obl
17	,	,	PUNCT	_	20 why	punct
18	which	which	PRON	PronType=Rel	20 why	nsubj
19	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	20 why	cop
20	why	why	ADV	PronType=Int	16 coils	acl:relcl
21	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	23 called	nsubj:pass
22	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	23 called	aux:pass
23	called	call	VERB	Tense=Past VerbForm=Part Voice=Pass	20 why	advcl
24	constrictors	constrictor	NOUN	Number=Plur	23 called	xcomp
25	.	.	PUNCT	_	2 have	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	Pythons = python	no venom			vn birth-28.2-1 «NP V NP»: agent=Agent venom=Patient
2	hunt	present	Pythons = python				vn hunt-35.1 «NP V»: agent=Agent
3	grab	gerund	Pythons = python not said here	prey			vn steal-10.5-1 «NP V NP»: agent=Agent prey=Theme
4	wrap	gerund	Pythons = python not said here	prey	Pythons's coils		vn spray-9.7-1 «NP V NP PP.destination»: agent=Agent it=Theme in coil=Destination
5	is	present	Pythons's coils			why property	tree rules
6	call	present · passive		Pythons = python			vn initiate_communication-37.4.2-1 «NP V NP.recipient»: subject=Recipient

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:321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get.lesson:1.

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. 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/321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get/1/