---
title: A polar bear walks on slippery ice without falling. How? — The polar zone: polar bears · tree and pragmatics
description: A polar bear walks on slippery ice without falling. How? Test 11 · ★ 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 11 · ★ · The polar zone: polar bears

<!-- .ven lang=en -->
A polar bear walks on slippery ice without falling. How?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** polar bear · **What happens:** walk, fall · **To what, where:** slippery ice

<!-- .vabout -->
This is test 11 · ★ 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/#t11).

## The question {#question}

<!-- .note -->
*Sentence 1:* A polar bear walks on slippery ice without falling.

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t11:1
# text = A polar bear walks on slippery ice without falling.
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	walks	walk	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	on	on	ADP	IN	_	7	case	_	_
6	slippery	slippery	ADJ	JJ	Degree=Pos	7	amod	_	_
7	ice	ice	NOUN	NN	Number=Sing	4	obl	_	_
8	without	without	SCONJ	IN	_	9	mark	_	_
9	falling	fall	VERB	VBG	Tense=Pres|VerbForm=Part	4	advcl	_	SpaceAfter=No
10	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **walk** | present | a polar bear |  |  | slippery ice |  |  | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme on ice=Trajectory |
| 2 | **fall** | gerund | a polar bear *not said here* |  |  |  |  |  | vn occur-48.3 «NP V»: agent=Theme |

<!-- .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.

<!-- .note -->
*Sentence 2:* How?

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t11:2
# text = How?
1	How	how	ADV	WRB	PronType=Int	0	root	_	SpaceAfter=No
2	?	?	PUNCT	.	_	1	punct	_	_
```

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

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
It never walks on ice, only snow

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t11:o1:1
# text = It never walks on ice, only snow
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	never	never	ADV	RB	PronType=Neg	3	advmod	_	_
3	walks	walk	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	on	on	ADP	IN	_	5	case	_	_
5	ice	ice	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
6	,	,	PUNCT	,	_	8	punct	_	_
7	only	only	ADV	RB	_	8	advmod	_	_
8	snow	snow	NOUN	NN	Number=Sing	5	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **walk** | present | It |  |  | ice and snow |  |  | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme on ice=Trajectory |

### Option 2 · ← Mova's choice · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Fur and small bumps on its soles grip the ice

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t11:o2:1
# text = Fur and small bumps on its soles grip the ice
1	Fur	fur	NOUN	NN	Number=Sing	8	nsubj	_	_
2	and	and	CCONJ	CC	_	4	cc	_	_
3	small	small	ADJ	JJ	Degree=Pos	4	amod	_	_
4	bumps	bump	NOUN	NNS	Number=Plur	1	conj	_	_
5	on	on	ADP	IN	_	7	case	_	_
6	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	soles	sole	NOUN	NNS	Number=Plur	4	nmod	_	_
8	grip	grip	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	ice	ice	NOUN	NN	Number=Sing	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **grip** | present | Fur and small bumps on its soles | the ice |  |  |  |  | vn touch-20-1 «NP V NP»: agent=Agent ice=Experiencer |

### Option 3 {#o3}

<!-- .ven lang=en -->
It has metal-like claws only

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t11:o3:1
# text = It has metal-like claws only
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	metal	metal	NOUN	NN	Number=Sing	5	compound	_	SpaceAfter=No
4	-	-	PUNCT	HYPH	_	3	punct	_	SpaceAfter=No
5	like	like	ADJ	JJ	Degree=Pos	6	amod	_	_
6	claws	claw	NOUN	NNS	Number=Plur	2	obj	_	_
7	only	only	ADV	RB	_	2	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | It | like claws |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent claw=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
It slides on purpose and enjoys it

```conllu
# sent_id = question:biology:105-the-polar-zone-polar-bears:t11:o4:1
# text = It slides on purpose and enjoys it
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	slides	slide	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	on	on	ADP	IN	_	4	case	_	_
4	purpose	purpose	NOUN	NN	Number=Sing	2	obl	_	_
5	and	and	CCONJ	CC	_	6	cc	_	_
6	enjoys	enjoy	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
7	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **slide** | present | It |  |  | purpose |  |  | vn run-51.3.2-2 «NP V PP.location»: agent=Theme on purpose=Trajectory |
| 2 | **enjoy** | present |  | purpose |  |  |  |  | vn admire-31.2 «NP V NP»: agent=Experiencer it=Stimulus |

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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.

<!-- /div -->

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