---
title: Identify the principal reason for which populations of large mammals… — The Chornobyl zone: how wild animals c… · tree and pragmatics
description: Identify the principal reason for which populations of large mammals have increased within the Chornobyl exclusion zone. Exam question 1 of lesson 376 «The Chornobyl zone: how wild animals came back, and what is still argued» of the biology course of Mova's primary school, with the dependency tree a
---

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# Exam question 1 · The Chornobyl zone: how wild animals came back, and what i…

<!-- .ven lang=en -->
Identify the principal reason for which populations of large mammals have increased within the Chornobyl exclusion zone.

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you, populations · **What happens:** identify, increase · **To what, where:** principal reason

<!-- .vabout -->
This is exam question 1 of lesson 376 «The Chornobyl zone: how wild animals came back, and what is still argued» 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/376-the-chornobyl-zone-how-wild-animals-came-back-and-what-is-still-argued/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:376-the-chornobyl-zone-how-wild-animals-came-back-and-what-is-still-argued:e1:1
# text = Identify the principal reason for which populations of large mammals have increased within the Chornobyl exclusion zone.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	which	which	PRON	WDT	PronType=Rel	12	obl	_	_
7	populations	population	NOUN	NNS	Number=Plur	12	nsubj	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	large	large	ADJ	JJ	Degree=Pos	10	amod	_	_
10	mammals	mammal	NOUN	NNS	Number=Plur	7	nmod	_	_
11	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	12	aux	_	_
12	increased	increase	VERB	VBN	Tense=Past|VerbForm=Part	4	acl:relcl	_	_
13	within	within	ADP	IN	_	17	case	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
15	Chornobyl	Chornobyl	PROPN	NNP	Number=Sing	17	compound	_	_
16	exclusion	exclusion	NOUN	NN	Number=Sing	17	compound	_	_
17	zone	zone	NOUN	NN	Number=Sing	12	obl	_	SpaceAfter=No
18	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the principal reason |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent reason=Theme |
| 2 | **increase** | present · perfect | populations of large mammals |  |  |  |  | for the principal reason; within the Chornobyl exclusion zone | vn caused\_calibratable\_cos-45.6.2-1 «NP V ADV-Middle»: agent=Patient |

<!-- .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 {#o1}

<!-- .ven lang=en -->
A beneficial influence of radiation upon their health and their fertility

```conllu
# sent_id = question:biology:376-the-chornobyl-zone-how-wild-animals-came-back-and-what-is-still-argued:e1:o1:1
# text = A beneficial influence of radiation upon their health and their fertility
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	beneficial	beneficial	ADJ	JJ	Degree=Pos	3	amod	_	_
3	influence	influence	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	radiation	radiation	NOUN	NN	Number=Sing	3	nmod	_	_
6	upon	upon	ADP	IN	_	8	case	_	_
7	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	health	health	NOUN	NN	Number=Sing	3	nmod	_	_
9	and	and	CCONJ	CC	_	11	cc	_	_
10	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	11	nmod:poss	_	_
11	fertility	fertility	NOUN	NN	Number=Sing	8	conj	_	_
```

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

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
The absence of hunting, agriculture and traffic following the evacuation

```conllu
# sent_id = question:biology:376-the-chornobyl-zone-how-wild-animals-came-back-and-what-is-still-argued:e1:o2:1
# text = The absence of hunting, agriculture and traffic following the evacuation
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	absence	absence	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	hunting	hunting	NOUN	NN	Number=Sing	2	nmod	_	SpaceAfter=No
5	,	,	PUNCT	,	_	6	punct	_	_
6	agriculture	agriculture	NOUN	NN	Number=Sing	4	conj	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	traffic	traffic	NOUN	NN	Number=Sing	4	conj	_	_
9	following	follow	VERB	VBG	VerbForm=Ger	2	acl	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	evacuation	evacuation	NOUN	NN	Number=Sing	9	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund | the absence of hunting and agriculture and traffic *not said here* | the evacuation |  |  |  |  | vn chase-51.6 «NP V NP»: agent=Agent evacuation=Theme |
| 2 | **absent** |  |  | hunting and agriculture and traffic |  |  |  |  | nom absence «state transitive»: of=patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
A marked warming of the regional climate

```conllu
# sent_id = question:biology:376-the-chornobyl-zone-how-wild-animals-came-back-and-what-is-still-argued:e1:o3:1
# text = A marked warming of the regional climate
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	marked	mark	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	amod	_	_
3	warming	warming	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	regional	regional	ADJ	JJ	Degree=Pos	7	amod	_	_
7	climate	climate	NOUN	NN	Number=Sing	3	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **mark** | participle |  |  |  |  |  |  | vn image\_impression-25.1 «NP V»: agent=Agent |
| 2 | **warm** |  | the regional climate |  |  |  |  |  | nom warming «process intransitive»: of=agent |

### Option 4 · ← Mova's choice {#o4}

<!-- .ven lang=en -->
The deliberate feeding of animals by the authorities

```conllu
# sent_id = question:biology:376-the-chornobyl-zone-how-wild-animals-came-back-and-what-is-still-argued:e1:o4:1
# text = The deliberate feeding of animals by the authorities
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	deliberate	deliberate	ADJ	JJ	Degree=Pos	3	amod	_	_
3	feeding	feeding	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	animals	animal	NOUN	NNS	Number=Plur	3	nmod	_	_
6	by	by	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	authorities	authority	NOUN	NNS	Number=Plur	3	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **feed** |  | animals |  |  |  |  |  | nom feeding «act intransitive»: of=agent |

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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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