---
title: A polar bear stays warm in the Arctic with thick fur and a layer of… — Keeping warm and keeping cool: insulation and sw… · tree and pragmatics
description: A polar bear stays warm in the Arctic with thick fur and a layer of fat, and its skin under the pale fur is black. Who acts: polar bear, skin. A sentence of the lesson «Keeping warm and keeping cool: insulation and sweat» of the physics course of Mova's primary school with its dependency tree and th
---

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# Keeping warm and keeping cool: insulation and sweat, sentence 7

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A polar bear stays warm in the Arctic with thick fur and a layer of fat, and its skin under the pale fur is black.

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**Who acts:** polar bear, skin · **What happens:** stay, be · **To what, where:** Arctic

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This is a sentence of the lesson «Keeping warm and keeping cool: insulation and sweat» of the physics 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 bear, skin), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:025-keeping-warm-and-keeping-cool.lesson:7
# text = A polar bear stays warm in the Arctic with thick fur and a layer of fat, and its skin under the pale fur is black.
# source = school lesson (ours)
# course = physics
# lesson = 025-keeping-warm-and-keeping-cool.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): no change
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	polar	polar	ADJ	JJ	Degree=Pos	3	amod	_	_
3	bear	bear	NOUN	NN	Number=Sing	4	nsubj	_	_
4	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	warm	warm	ADJ	JJ	Degree=Pos	4	xcomp	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	Arctic	Arctic	PROPN	NNP	Number=Sing	4	obl	_	_
9	with	with	ADP	IN	_	11	case	_	_
10	thick	thick	ADJ	JJ	Degree=Pos	11	amod	_	_
11	fur	fur	NOUN	NN	Number=Sing	4	obl	_	_
12	and	and	CCONJ	CC	_	14	cc	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
14	layer	layer	NOUN	NN	Number=Sing	11	conj	_	_
15	of	of	ADP	IN	_	16	case	_	_
16	fat	fat	NOUN	NN	Number=Sing	14	nmod	_	_
17	,	,	PUNCT	,	_	26	punct	_	_
18	and	and	CCONJ	CC	_	26	cc	_	_
19	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	20	nmod:poss	_	_
20	skin	skin	NOUN	NN	Number=Sing	26	nsubj	_	_
21	under	under	ADP	IN	_	24	case	_	_
22	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
23	pale	pale	ADJ	JJ	Degree=Pos	24	amod	_	_
24	fur	fur	NOUN	NN	Number=Sing	20	nmod	_	_
25	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	26	cop	_	_
26	black	black	ADJ	JJ	Degree=Pos	4	conj	_	_
27	.	.	PUNCT	.	_	4	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stay** | present | a polar bear |  |  | the Arctic |  | with thick fur and a layer of fat; warm *property* | vn exist-47.1 «NP V PP.location»: agent=Theme in arctic=Location |
| 2 | **is** | present | bear's skin under the pale fur |  |  |  |  | black *property* | tree rules |

<!-- .note -->
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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/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:physics:025-keeping-warm-and-keeping-cool.lesson:7`.

**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): no change. **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](https://md.mova.elamur.ai/free/en/releases/0.4/).

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