---
title: What would happen to a kelp forest if all the sea otters were hunted… — Comeback stories: bald eagles, humpbac… · tree and pragmatics
description: What would happen to a kelp forest if all the sea otters were hunted again? Test 4 of lesson 282 «Comeback stories: bald eagles, humpback whales, condors and the kakapo» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's
---

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# Test 4 · Comeback stories: bald eagles, humpback whales, condors an…

<!-- .ven lang=en -->
What would happen to a kelp forest if all the sea otters were hunted again?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **What happens:** happen, hunt · **To what, where:** sea otters

<!-- .vabout -->
This is test 4 of lesson 282 «Comeback stories: bald eagles, humpback whales, condors and the kakapo» 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/282-comeback-stories-bald-eagles-humpback-whales-condors-and-the-kakapo/#t4).

## The question {#question}

```conllu
# sent_id = question:biology:282-comeback-stories-bald-eagles-humpback-whales-condors-and-the-kakapo:t4:1
# text = What would happen to a kelp forest if all the sea otters were hunted again?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	happen	happen	VERB	VB	VerbForm=Inf	0	root	_	_
4	to	to	ADP	IN	_	7	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	kelp	kelp	NOUN	NN	Number=Sing	7	compound	_	_
7	forest	forest	NOUN	NN	Number=Sing	3	obl	_	_
8	if	if	SCONJ	IN	_	14	mark	_	_
9	all	all	DET	PDT	PronType=Tot	12	det:predet	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
11	sea	sea	NOUN	NN	Number=Sing	12	compound	_	_
12	otters	otter	NOUN	NNS	Number=Plur	14	nsubj	_	_
13	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	14	aux:pass	_	_
14	hunted	hunt	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	_	_
15	again	again	ADV	RB	_	14	advmod	_	SpaceAfter=No
16	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | would |  |  |  |  |  | to a kelp forest | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **hunt** *a condition, not said to happen* | past · passive |  | all sea otters |  |  | again |  | vn hunt-35.1 «NP V NP»: subject=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.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
The kelp would grow faster than ever, with nothing to stop it

```conllu
# sent_id = question:biology:282-comeback-stories-bald-eagles-humpback-whales-condors-and-the-kakapo:t4:o1:1
# text = The kelp would grow faster than ever, with nothing to stop it
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	kelp	kelp	NOUN	NN	Number=Sing	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	grow	grow	VERB	VB	VerbForm=Inf	0	root	_	_
5	faster	fast	ADV	RBR	Degree=Cmp	4	advmod	_	_
6	than	than	ADP	IN	_	7	case	_	_
7	ever	ever	ADV	RB	PronType=Ind	5	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	10	punct	_	_
9	with	with	ADP	IN	_	10	case	_	_
10	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	4	obl	_	_
11	to	to	PART	TO	_	12	mark	_	_
12	stop	stop	VERB	VB	VerbForm=Inf	10	acl	_	_
13	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **grow** | would | the kelp |  |  |  |  | with nothing; fast *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **stop** | to-infinitive | the kelp *not said here* | kelp |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality it=Eventuality |

### Option 2 {#o2}

<!-- .ven lang=en -->
Nothing would change

```conllu
# sent_id = question:biology:282-comeback-stories-bald-eagles-humpback-whales-condors-and-the-kakapo:t4:o2:1
# text = Nothing would change
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	change	change	VERB	VB	VerbForm=Inf	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | would | Nothing |  |  |  |  |  | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
The urchins would all die

```conllu
# sent_id = question:biology:282-comeback-stories-bald-eagles-humpback-whales-condors-and-the-kakapo:t4:o3:1
# text = The urchins would all die
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	urchins	urchin	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	5	aux	_	_
4	all	all	ADV	RB	_	5	advmod	_	_
5	die	die	VERB	VB	VerbForm=Inf	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **die** | would | the urchins |  |  |  |  | all *property* | vn calibratable\_cos-45.6.1 «NP.attribute V»: agent=Attribute |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Sea urchins would multiply and eat much of the kelp

```conllu
# sent_id = question:biology:282-comeback-stories-bald-eagles-humpback-whales-condors-and-the-kakapo:t4:o4:1
# text = Sea urchins would multiply and eat much of the kelp
1	Sea	sea	NOUN	NN	Number=Sing	2	compound	_	_
2	urchins	urchin	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	multiply	multiply	VERB	VB	VerbForm=Inf	0	root	_	_
5	and	and	CCONJ	CC	_	6	cc	_	_
6	eat	eat	VERB	VB	VerbForm=Inf	4	conj	_	_
7	much	much	ADJ	JJ	Degree=Pos	4	obj	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	kelp	kelp	NOUN	NN	Number=Sing	7	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **multiply** | would | Sea urchins | much of the kelp |  |  |  |  | vn multiply-108-1 «NP V NP»: agent=Agent much=Theme |
| 2 | **eat** | infinitive | Sea urchins *not said here* |  |  |  |  |  | vn eat-39.1-1 «NP V»: agent=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.

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