---
title: «a beaver's back in our river, it'll ruin everything» What is fairest? — Wolves in Yellowstone, beavers in Brit… · tree and pragmatics
description: «a beaver's back in our river, it'll ruin everything» What is fairest? Test 7 · ★ of lesson 283 «Wolves in Yellowstone, beavers in Britain and bringing nature back» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choi
---

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# Test 7 · ★ · Wolves in Yellowstone, beavers in Britain and bringing nat…

<!-- .ven lang=en -->
«a beaver's back in our river, it'll ruin everything» What is fairest?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** back · **What happens:** ruin, be · **To what, where:** everything · **Speech:** someone speaks here

<!-- .vabout -->
This is test 7 · ★ of lesson 283 «Wolves in Yellowstone, beavers in Britain and bringing nature back» 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/283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back/#t7).

## The question {#question}

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t7:1
# text = «a beaver's back in our river, it'll ruin everything» What is fairest?
1	«	«	PUNCT	``	_	12	punct	_	SpaceAfter=No
2	a	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
3	beaver	beaver	NOUN	NN	Number=Sing	5	nmod:poss	_	SpaceAfter=No
4	's	's	PART	POS	_	3	case	_	_
5	back	back	NOUN	NN	Number=Sing	12	nsubj	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	our	our	PRON	PRP$	Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	river	river	NOUN	NN	Number=Sing	5	nmod	_	SpaceAfter=No
9	,	,	PUNCT	,	_	12	punct	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	nsubj	_	SpaceAfter=No
11	'll	will	AUX	MD	VerbForm=Fin	12	aux	_	_
12	ruin	ruin	VERB	VB	VerbForm=Inf	17	ccomp	_	_
13	everything	everything	PRON	NN	Number=Sing|PronType=Tot	12	obj	_	SpaceAfter=No
14	»	»	PUNCT	''	_	12	punct	_	_
15	What	what	PRON	WP	PronType=Int	17	nsubj	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	17	cop	_	_
17	fairest	fair	ADJ	JJS	Degree=Sup	0	root	_	SpaceAfter=No
18	?	?	PUNCT	.	_	17	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ruin** *in a quote* | future | a beaver's back in our river | everything |  |  |  |  | vn destroy-44 «NP V NP»: agent=Agent everything=Patient |
| 2 | **is** | present |  |  |  |  |  | fair *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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Beavers always destroy towns

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t7:o1:1
# text = Beavers always destroy towns
1	Beavers	beaver	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	always	always	ADV	RB	PronType=Tot	3	advmod	_	_
3	destroy	destroy	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	towns	town	NOUN	NNS	Number=Plur	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **destroy** | present | Beavers | towns |  |  |  | always *property* | vn destroy-44 «NP V NP»: agent=Agent town=Patient |

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

<!-- .ven lang=en -->
Beaver dams slow floods and make ponds full of life, but some farmers worry about flooded fields

<!-- fold The tree, 17 words -->
```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t7:o2:1
# text = Beaver dams slow floods and make ponds full of life, but some farmers worry about flooded fields
1	Beaver	beaver	NOUN	NN	Number=Sing	2	compound	_	_
2	dams	dam	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	slow	slow	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	floods	flood	NOUN	NNS	Number=Plur	3	obj	_	_
5	and	and	CCONJ	CC	_	6	cc	_	_
6	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
7	ponds	pond	NOUN	NNS	Number=Plur	6	obj	_	_
8	full	full	ADJ	JJ	Degree=Pos	6	xcomp	_	_
9	of	of	ADP	IN	_	10	case	_	_
10	life	life	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
11	,	,	PUNCT	,	_	15	punct	_	_
12	but	but	CCONJ	CC	_	15	cc	_	_
13	some	some	DET	DT	PronType=Ind	14	det	_	_
14	farmers	farmer	NOUN	NNS	Number=Plur	15	nsubj	_	_
15	worry	worry	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
16	about	about	ADP	IN	_	18	case	_	_
17	flooded	flood	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	18	amod	_	_
18	fields	field	NOUN	NNS	Number=Plur	15	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **slow** | present | Beaver dams | floods |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent flood=Patient |
| 2 | **make** | present | Beaver dams *not said here* | ponds |  |  |  | full *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset pond=Product |
| 3 | **worry** | present | some farmers |  |  |  |  | about flooded fields | vn care-88.1-1 «NP V PP.stimulus what S»: agent=Experiencer about field=Stimulus |
| 4 | **flood** | participle |  |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Beavers are dangerous to children

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t7:o3:1
# text = Beavers are dangerous to children
1	Beavers	beaver	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	dangerous	dangerous	ADJ	JJ	Degree=Pos	0	root	_	_
4	to	to	ADP	IN	_	5	case	_	_
5	children	child	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Beavers |  |  |  |  | to children; dangerous *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Beavers bring nothing but floods

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t7:o4:1
# text = Beavers bring nothing but floods
1	Beavers	beaver	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	bring	bring	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	2	obj	_	_
4	but	but	CCONJ	CC	_	5	cc	_	_
5	floods	flood	NOUN	NNS	Number=Plur	3	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bring** | present | Beavers | nothing |  |  |  |  | vn bring-11.3-1 «NP V NP together»: agent=Agent nothing=Theme |

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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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