---
title: Why might a polar bear in summer roll in the snow? — The polar zone: polar bears · tree and pragmatics
description: Why might a polar bear in summer roll in the snow? Test 10 · ★ of lesson 105 «The polar zone: polar bears» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 10 · ★ · The polar zone: polar bears

<!-- .ven lang=en -->
Why might a polar bear in summer roll in the snow?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓

<!-- .vabout -->
This is test 10 · ★ of lesson 105 «The polar zone: polar bears» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/105-the-polar-zone-polar-bears/#t10).

## The question {#question}

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t10:1
# text = Why might a polar bear in summer roll in the snow?
1	Why	why	ADV	WRB	PronType=Int	5	advmod	_	_
2	might	might	AUX	MD	VerbForm=Fin	5	aux	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	polar	polar	ADJ	JJ	Degree=Pos	5	amod	_	_
5	bear	bear	NOUN	NN	Number=Sing	0	root	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	summer	summer	NOUN	NN	Number=Sing	8	compound	_	_
8	roll	roll	NOUN	NN	Number=Sing	5	nmod	_	_
9	in	in	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	snow	snow	NOUN	NN	Number=Sing	8	nmod	_	SpaceAfter=No
12	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
To clean its fur

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t10:o1:1
# text = To clean its fur
1	To	to	PART	TO	_	2	mark	_	_
2	clean	clean	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	fur	fur	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **clean** | to-infinitive |  | its fur |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent fur=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
To cool down after eating a big heavy meal

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t10:o2:1
# text = To cool down after eating a big heavy meal
1	To	to	PART	TO	_	2	mark	_	_
2	cool	cool	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	down	down	ADP	RP	_	2	compound:prt	_	_
4	after	after	SCONJ	IN	_	5	mark	_	_
5	eating	eat	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
7	big	big	ADJ	JJ	Degree=Pos	9	amod	_	_
8	heavy	heavy	ADJ	JJ	Degree=Pos	9	amod	_	_
9	meal	meal	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **cool down** | to-infinitive |  |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 2 | **eat** | gerund |  | a big heavy meal |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent meal=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
To make its fur grow longer

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t10:o3:1
# text = To make its fur grow longer
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	VerbForm=Inf	5	advcl	_	_
3	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	fur	fur	NOUN	NN	Number=Sing	2	obj	_	_
5	grow	grow	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
6	longer	long	ADV	RBR	Degree=Cmp	5	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | its fur |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset fur=Product |
| 2 | **grow** | present |  |  |  |  |  | long *property* | vn appear-48.1.1 «NP V»: agent=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
To hide from seals

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t10:o4:1
# text = To hide from seals
1	To	to	PART	TO	_	2	mark	_	_
2	hide	hide	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	from	from	ADP	IN	_	4	case	_	_
4	seals	seal	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hide** | to-infinitive |  |  |  | seals |  |  | vn concealment-16-1 «NP V PP.beneficiary»: agent=Agent from seal=Beneficiary |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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