The polar zone: polar bears, sentence 13

Polar bears clean themselves carefully after eating and roll in snow in summer, because clean fur keeps them warm and dirty fur lets cold and water reach the skin.

Who acts: Polar bears, clean fur, dirty fur, cold · What happens: clean, eat, roll, keep, let, reach · To what, where: cubs, snow, skin

This is a sentence of the lesson «The polar zone: polar bears» 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 (Polar bears, clean fur, dirty fur, cold), 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	Polar	polar	ADJ	Degree=Pos	2 bears	amod
2	bears	bear	NOUN	Number=Plur	3 clean	nsubj
3	clean	clean	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	themselves	themselves	PRON	Case=Acc Number=Plur Person=3 PronType=Prs Reflex=Yes	3 clean	obj
5	carefully	carefully	ADV	_	3 clean	advmod
6	after	after	SCONJ	_	7 eating	mark
7	eating	eat	VERB	Tense=Pres VerbForm=Part	3 clean	advcl
8	and	and	CCONJ	_	9 roll	cc
9	roll	roll	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	7 eating	conj
10	in	in	ADP	_	11 snow	case
11	snow	snow	NOUN	Number=Sing	9 roll	obl
12	in	in	ADP	_	13 summer	case
13	summer	summer	NOUN	Number=Sing	7 eating	obl
14	,	,	PUNCT	_	18 keeps	punct
15	because	because	SCONJ	_	18 keeps	mark
16	clean	clean	ADJ	Degree=Pos	17 fur	amod
17	fur	fur	NOUN	Number=Sing	18 keeps	nsubj
18	keeps	keep	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 clean	conj
19	them	they	PRON	Case=Acc Number=Plur Person=3 PronType=Prs	18 keeps	obj
20	warm	warm	ADJ	Degree=Pos	18 keeps	xcomp
21	and	and	CCONJ	_	24 lets	cc
22	dirty	dirty	ADJ	Degree=Pos	23 fur	amod
23	fur	fur	NOUN	Number=Sing	24 lets	nsubj
24	lets	let	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	18 keeps	conj
25	cold	cold	ADJ	Degree=Pos	28 reach	nsubj
26	and	and	CCONJ	_	27 water	cc
27	water	water	NOUN	Number=Sing	25 cold	conj
28	reach	reach	VERB	VerbForm=Inf	24 lets	xcomp
29	the	the	DET	Definite=Def PronType=Art	30 skin	det
30	skin	skin	NOUN	Number=Sing	28 reach	obj
31	.	.	PUNCT	_	3 clean	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	where	when	other	roles by
1	clean	present	Polar bears	cubs = cub			carefully property	vn other_cos-45.4 «NP V NP.patient»: agent=Agent themselves=Patient
2	eat	gerund	Polar bears not said here			summer		vn eat-39.1-1 «NP V»: agent=Agent
3	roll	present	Polar bears not said here		snow			vn run-51.3.2-2 «NP V PP.location»: agent=Theme in snow=Trajectory
4	keep	present	clean fur	cubs = cub			warm property	vn keep-15.2 «NP V NP»: agent=Agent they=Theme
5	let	present	dirty fur					tree rules
6	reach	infinitive	cold and water	the skin				vn body_motion-49.2-1-1 «NP V NP ADV»: agent=Agent skin=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:105-the-polar-zone-polar-bears.lesson:13.

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): R5-strong ×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/105-the-polar-zone-polar-bears/13/