Plastics: useful and stubborn, sentence 8

When a plastic bag is stretched, its long chains slide past each other and line up, so it thins out before it tears.

Who acts: long chains, chain · What happens: stretch, slide, line up, thin out, tear · To what, where: plastic bag, each

This is a sentence of the lesson «Plastics: useful and stubborn» of the chemistry 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 (long chains, chain), 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	When	when	SCONJ	_	6 stretched	mark
2	a	a	DET	Definite=Ind PronType=Art	4 bag	det
3	plastic	plastic	ADJ	Degree=Pos	4 bag	amod
4	bag	bag	NOUN	Number=Sing	6 stretched	nsubj:pass
5	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 stretched	aux:pass
6	stretched	stretch	VERB	Tense=Past VerbForm=Part Voice=Pass	11 slide	advcl
7	,	,	PUNCT	_	11 slide	punct
8	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	10 chains	nmod:poss
9	long	long	ADJ	Degree=Pos	10 chains	amod
10	chains	chain	NOUN	Number=Plur	11 slide	nsubj
11	slide	slide	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
12	past	past	ADP	_	13 each	case
13	each	each	DET	ExtPos=PRON PronType=Rcp	11 slide	obl
14	other	other	ADJ	Degree=Pos	13 each	fixed
15	and	and	CCONJ	_	16 line	cc
16	line	line	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	11 slide	conj
17	up	up	ADP	_	16 line	compound:prt
18	,	,	PUNCT	_	21 thins	punct
19	so	so	ADV	_	21 thins	advmod
20	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	21 thins	nsubj
21	thins	thin	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	11 slide	conj
22	out	out	ADP	_	21 thins	compound:prt
23	before	before	SCONJ	_	25 tears	mark
24	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	25 tears	nsubj
25	tears	tear	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	21 thins	advcl
26	.	.	PUNCT	_	11 slide	punct

Pragmatics

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

#	verb	tense, mood	who	what, whom	where	roles by
1	stretch	present · passive		a plastic bag		vn bend-45.2 «NP V NP.patient»: subject=Patient
2	slide	present	bag's long chains		each	vn run-51.3.2-2 «NP V PP.location»: agent=Theme past each=Trajectory
3	line up	present	bag's long chains not said here			vn fill-9.8-1 «NP V NP»: agent=Theme
4	thin out	present	chain			vn other_cos-45.4 «NP.patient V»: agent=Patient
5	tear	present	chain			vn run-51.3.2 «NP V»: agent=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:chemistry:029-plastics-useful-stubborn.lesson:8.

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 ×2. 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/chemistry/29-plastics-useful-stubborn/8/