---
title: «they said the wolves changed the rivers, so wolves dig rivers?» Wha… — Wolves in Yellowstone, beavers in Brit… · tree and pragmatics
description: «they said the wolves changed the rivers, so wolves dig rivers?» What really happened? Test 10 · ★ 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 op
---

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# Test 10 · ★ · Wolves in Yellowstone, beavers in Britain and bringing nat…

<!-- .ven lang=en -->
«they said the wolves changed the rivers, so wolves dig rivers?» What really happened?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** they, wolves · **What happens:** say, change, dig, happen · **To what, where:** rivers · **Speech:** someone speaks here

<!-- .vabout -->
This is test 10 · ★ 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/#t10).

## The question {#question}

<!-- .note -->
*Sentence 1:* «they said the wolves changed the rivers, so wolves dig rivers?»

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t10:1
# text = «they said the wolves changed the rivers, so wolves dig rivers?»
1	«	«	PUNCT	``	_	3	punct	_	SpaceAfter=No
2	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	_	_
3	said	say	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	wolves	wolf	NOUN	NNS	Number=Plur	6	nsubj	_	_
6	changed	change	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	3	ccomp	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	rivers	river	NOUN	NNS	Number=Plur	6	obj	_	SpaceAfter=No
9	,	,	PUNCT	,	_	12	punct	_	_
10	so	so	ADV	RB	_	12	advmod	_	_
11	wolves	wolf	NOUN	NNS	Number=Plur	12	nsubj	_	_
12	dig	dig	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	ccomp	_	_
13	rivers	river	NOUN	NNS	Number=Plur	12	obj	_	SpaceAfter=No
14	?	?	PUNCT	.	_	12	punct	_	SpaceAfter=No
15	»	»	PUNCT	''	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: ask* *in a quote* | past | they |  |  |  |  |  | vn say-37.7-1-1 «NP V that S»: agent=Agent clause=Topic |
| 2 | **change** *in a quote* | past | the wolves | the rivers |  |  |  |  | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent river=Patient |
| 3 | **dig** *in a quote* | present | wolves | rivers |  |  |  |  | vn poke-19-1-1-1 «NP V NP.theme»: agent=Agent river=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:* What really happened?

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t10:2
# text = What really happened?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	really	really	ADV	RB	_	3	advmod	_	_
3	happened	happen	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	SpaceAfter=No
4	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | past |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |

## The options {#options}

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

<!-- .ven lang=en -->
Wolves changed how elk moved, which helped trees in some places, and that helped beavers and birds

<!-- fold The tree, 17 words -->
```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t10:o1:1
# text = Wolves changed how elk moved, which helped trees in some places, and that helped beavers and birds
1	Wolves	wolf	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	changed	change	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	how	how	ADV	WRB	PronType=Int	5	advmod	_	_
4	elk	elk	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	moved	move	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	2	ccomp	_	SpaceAfter=No
6	,	,	PUNCT	,	_	8	punct	_	_
7	which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
8	helped	help	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	conj	_	_
9	trees	tree	NOUN	NNS	Number=Plur	8	obj	_	_
10	in	in	ADP	IN	_	12	case	_	_
11	some	some	DET	DT	PronType=Ind	12	det	_	_
12	places	place	NOUN	NNS	Number=Plur	8	obl	_	SpaceAfter=No
13	,	,	PUNCT	,	_	16	punct	_	_
14	and	and	CCONJ	CC	_	16	cc	_	_
15	that	that	PRON	DT	Number=Sing|PronType=Dem	16	nsubj	_	_
16	helped	help	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	conj	_	_
17	beavers	beaver	NOUN	NNS	Number=Plur	16	obj	_	_
18	and	and	CCONJ	CC	_	19	cc	_	_
19	birds	bird	NOUN	NNS	Number=Plur	17	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | past | Wolves |  |  |  |  |  | tree rules |
| 2 | **move** | past | elk |  |  |  |  |  | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 3 | **help** | past |  | trees |  | some places |  |  | vn help-72.1-1-1 «NP V NP»: agent=Agent tree=Beneficiary |
| 4 | **help** | past | that |  | beavers and birds |  |  |  | vn help-72.1-1-1 «NP V NP»: agent=Agent beaver=Beneficiary |

### Option 2 {#o2}

<!-- .ven lang=en -->
Wolves drank the rivers dry

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t10:o2:1
# text = Wolves drank the rivers dry
1	Wolves	wolf	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	drank	drink	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	rivers	river	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	dry	dry	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	ccomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **drink** | past | Wolves |  |  |  |  |  | tree rules |
| 2 | **dry** | present | the rivers |  |  |  |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Wolves dug new rivers with their paws

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t10:o3:1
# text = Wolves dug new rivers with their paws
1	Wolves	wolf	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	dug	dig	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	new	new	ADJ	JJ	Degree=Pos	4	amod	_	_
4	rivers	river	NOUN	NNS	Number=Plur	2	obj	_	_
5	with	with	ADP	IN	_	7	case	_	_
6	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	paws	paw	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dig** | past | Wolves | new rivers |  |  |  | with Wolves's paws | vn poke-19-1-1-1 «NP V NP.theme PP.instsrument»: agent=Agent river=Theme with paw=Instrument |

### Option 4 {#o4}

<!-- .ven lang=en -->
Wolves carried stones to make dams

```conllu
# sent_id = question:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back:t10:o4:1
# text = Wolves carried stones to make dams
1	Wolves	wolf	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	carried	carry	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	stones	stone	NOUN	NNS	Number=Plur	2	obj	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	make	make	VERB	VB	VerbForm=Inf	2	advcl	_	_
6	dams	dam	NOUN	NNS	Number=Plur	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **carry** | past | Wolves | stones |  |  |  |  | vn carry-11.4 «NP V NP»: agent=Agent stone=Theme |
| 2 | **make** | to-infinitive | Wolves *not said here* | dams |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset dam=Product |

<!-- div src -->

**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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- ↑ back to [Wolves in Yellowstone, beavers in Britain and bringing nature back](https://md.mova.elamur.ai/free/en/corpora/questions/biology/283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back/)

