---
title: Ascertain the reason for which hybrids of the grizzly and the polar… — Bears by kind: the eight bears of the… · tree and pragmatics
description: Ascertain the reason for which hybrids of the grizzly and the polar bear have been recorded in the Canadian Arctic. Exam question 4 of lesson 319 «Bears by kind: the eight bears of the world» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and 
---

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# Exam question 4 · Bears by kind: the eight bears of the world

<!-- .ven lang=en -->
Ascertain the reason for which hybrids of the grizzly and the polar bear have been recorded in the Canadian Arctic.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** ascertain, record · **To what, where:** reason, hybrids, Canadian Arctic

<!-- .vabout -->
This is exam question 4 of lesson 319 «Bears by kind: the eight bears of the world» of the biology course of Mova's primary school, asked in stiff, formal language. 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/319-bears-by-kind-the-eight-bears-of-the-world/#e4).

## The question {#question}

```conllu
# sent_id = question:biology:319-bears-by-kind-the-eight-bears-of-the-world:e4:1
# text = Ascertain the reason for which hybrids of the grizzly and the polar bear have been recorded in the Canadian Arctic.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	which	which	DET	WDT	PronType=Int	6	det	_	_
6	hybrids	hybrid	NOUN	NNS	Number=Plur	16	nsubj:pass	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	grizzly	grizzly	NOUN	NN	Number=Sing	6	nmod	_	_
10	and	and	CCONJ	CC	_	13	cc	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
12	polar	polar	ADJ	JJ	Degree=Pos	13	amod	_	_
13	bear	bear	NOUN	NN	Number=Sing	9	conj	_	_
14	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	16	aux	_	_
15	been	be	AUX	VBN	Tense=Past|VerbForm=Part	16	aux:pass	_	_
16	recorded	record	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl:relcl	_	_
17	in	in	ADP	IN	_	20	case	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
19	Canadian	Canadian	ADJ	JJ	Degree=Pos	20	amod	_	_
20	Arctic	Arctic	PROPN	NNP	Number=Sing	16	obl	_	SpaceAfter=No
21	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the reason |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent reason=Topic |
| 2 | **record** | present · perfect · passive |  | which hybrids of the grizzly and the polar bear |  | the Canadian Arctic |  |  | vn scribble-25.2-1 «NP V NP PP.destination»: subject=Theme in arctic=Destination |

<!-- .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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The two species have always shared identical habitats

```conllu
# sent_id = question:biology:319-bears-by-kind-the-eight-bears-of-the-world:e4:o1:1
# text = The two species have always shared identical habitats
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	two	two	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
3	species	species	NOUN	NNS	Number=Plur	6	nsubj:pass	_	_
4	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	aux	_	_
5	always	always	ADV	RB	PronType=Tot	6	advmod	_	_
6	shared	share	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	identical	identical	ADJ	JJ	Degree=Pos	8	amod	_	_
8	habitats	habitat	NOUN	NNS	Number=Plur	6	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **share** | present · perfect · passive |  | the two species |  |  |  | always *property* | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
Both species have been released together by zoological gardens

```conllu
# sent_id = question:biology:319-bears-by-kind-the-eight-bears-of-the-world:e4:o2:1
# text = Both species have been released together by zoological gardens
1	Both	both	DET	DT	PronType=Tot	2	det	_	_
2	species	species	NOUN	NNS	Number=Plur	5	nsubj:pass	_	_
3	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	aux	_	_
4	been	be	AUX	VBN	Tense=Past|VerbForm=Part	5	aux:pass	_	_
5	released	release	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	together	together	ADV	RB	_	5	advmod	_	_
7	by	by	ADP	IN	_	9	case	_	_
8	zoological	zoological	ADJ	JJ	Degree=Pos	9	amod	_	_
9	gardens	garden	NOUN	NNS	Number=Plur	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **release** | present · perfect · passive | zoological gardens | both species |  |  |  | together *property* | vn free-10.6.3-1 «NP V NP S\_ING»: agent=Causer subject=Source |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Grizzlies have extended their range northward as the Arctic has warmed

```conllu
# sent_id = question:biology:319-bears-by-kind-the-eight-bears-of-the-world:e4:o3:1
# text = Grizzlies have extended their range northward as the Arctic has warmed
1	Grizzlies	grizzly	NOUN	NNS	Number=Plur	3	nsubj:pass	_	_
2	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux	_	_
3	extended	extend	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
5	range	range	NOUN	NN	Number=Sing	3	obj	_	_
6	northward	northward	ADV	RB	_	3	advmod	_	_
7	as	as	SCONJ	IN	_	11	mark	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	Arctic	Arctic	PROPN	NNP	Number=Sing	11	nsubj	_	_
10	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	aux	_	_
11	warmed	warm	VERB	VBN	Tense=Past|VerbForm=Part	3	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **extend** | present · perfect · passive |  | Grizzlies |  |  |  | northward *property* | vn contribute-13.2-2 «NP V NP PP.theme»: subject=Recipient range=Theme |
| 2 | **warm** | present · perfect | the Arctic |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
Polar bears have migrated to southern forests in search of bamboo

```conllu
# sent_id = question:biology:319-bears-by-kind-the-eight-bears-of-the-world:e4:o4:1
# text = Polar bears have migrated to southern forests in search of bamboo
1	Polar	polar	ADJ	JJ	Degree=Pos	2	amod	_	_
2	bears	bear	NOUN	NNS	Number=Plur	4	nsubj:pass	_	_
3	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	migrated	migrate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	to	to	ADP	IN	_	7	case	_	_
6	southern	southern	ADJ	JJ	Degree=Pos	7	amod	_	_
7	forests	forest	NOUN	NNS	Number=Plur	4	obl	_	_
8	in	in	ADP	IN	_	9	case	_	_
9	search	search	NOUN	NN	Number=Sing	7	nmod	_	_
10	of	of	ADP	IN	_	11	case	_	_
11	bamboo	bamboo	NOUN	NN	Number=Sing	9	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **migrate** | present · perfect · passive |  | Polar bears |  |  |  | to southern forests in search of bamboo | tree rules |
| 2 | **search** |  |  | bamboo |  |  |  |  | nom search «act transitive»: of=patient |

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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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