---
title: Why would a whale that hunts in the black deep need very loud clicks? — Whales by kind, the toothed whales: sp… · tree and pragmatics
description: Why would a whale that hunts in the black deep need very loud clicks? Test 9 · ★ of lesson 313 «Whales by kind, the toothed whales: sperm whale, orca, beluga and beaked whales» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option;
---

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# Test 9 · ★ · Whales by kind, the toothed whales: sperm whale, orca, bel…

<!-- .ven lang=en -->
Why would a whale that hunts in the black deep need very loud clicks?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** whale · **What happens:** hunt, need · **To what, where:** black deep, loud clicks

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This is test 9 · ★ of lesson 313 «Whales by kind, the toothed whales: sperm whale, orca, beluga and beaked whales» 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/313-whales-by-kind-the-toothed-whales-sperm-whale-orca-beluga-and-beaked-whales/#t9).

## The question {#question}

```conllu
# sent_id = question:biology:313-whales-by-kind-the-toothed-whales-sperm-whale-orca-beluga-and-beaked-whales:t9:1
# text = Why would a whale that hunts in the black deep need very loud clicks?
1	Why	why	ADV	WRB	PronType=Int	11	advmod	_	_
2	would	would	AUX	MD	VerbForm=Fin	11	aux	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	whale	whale	NOUN	NN	Number=Sing	11	nsubj	_	_
5	that	that	PRON	WDT	PronType=Rel	6	nsubj	_	_
6	hunts	hunt	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	acl:relcl	_	_
7	in	in	ADP	IN	_	10	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
9	black	black	ADJ	JJ	Degree=Pos	10	amod	_	_
10	deep	deep	ADJ	JJ	Degree=Pos	6	obl	_	_
11	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
12	very	very	ADV	RB	_	13	advmod	_	_
13	loud	loud	ADJ	JJ	Degree=Pos	14	amod	_	_
14	clicks	click	NOUN	NNS	Number=Plur	11	obj	_	SpaceAfter=No
15	?	?	PUNCT	.	_	11	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hunt** | present | a whale |  |  | the black deep |  |  | vn hunt-35.1 «NP V PP.theme PP.location»: agent=Agent in deep=Location |
| 2 | **need** | would | a whale | loud clicks |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot click=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 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
To keep itself warm

```conllu
# sent_id = question:biology:313-whales-by-kind-the-toothed-whales-sperm-whale-orca-beluga-and-beaked-whales:t9:o1:1
# text = To keep itself warm
1	To	to	PART	TO	_	2	mark	_	_
2	keep	keep	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	itself	itself	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs|Reflex=Yes	2	obj	_	_
4	warm	warm	ADJ	JJ	Degree=Pos	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | to-infinitive |  | itself *= it* |  |  |  | warm *property* | vn keep-15.2 «NP V NP»: agent=Agent itself=Theme |

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

<!-- .ven lang=en -->
To find prey by echoes where there is no light

```conllu
# sent_id = question:biology:313-whales-by-kind-the-toothed-whales-sperm-whale-orca-beluga-and-beaked-whales:t9:o2:1
# text = To find prey by echoes where there is no light
1	To	to	PART	TO	_	2	mark	_	_
2	find	find	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	prey	prey	NOUN	NN	Number=Sing	2	obj	_	_
4	by	by	ADP	IN	_	5	case	_	_
5	echoes	echo	NOUN	NNS	Number=Plur	2	obl	_	_
6	where	where	ADV	WRB	PronType=Rel	8	advmod	_	_
7	there	there	PRON	EX	PronType=Dem	8	expl	_	_
8	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
9	no	no	DET	DT	PronType=Neg	10	det	_	_
10	light	light	NOUN	NN	Number=Sing	8	nsubj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **find** | to-infinitive |  | prey |  |  |  | by echoes | vn discover-84 «NP V NP»: agent=Agent prey=Topic |
| 2 | **be** | present | no light |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
To call sea birds down to help it hunt

```conllu
# sent_id = question:biology:313-whales-by-kind-the-toothed-whales-sperm-whale-orca-beluga-and-beaked-whales:t9:o3:1
# text = To call sea birds down to help it hunt
1	To	to	PART	TO	_	2	mark	_	_
2	call	call	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	sea	sea	NOUN	NN	Number=Sing	4	compound	_	_
4	birds	bird	NOUN	NNS	Number=Plur	2	obj	_	_
5	down	down	ADV	RB	_	2	advmod	_	_
6	to	to	PART	TO	_	7	mark	_	_
7	help	help	VERB	VB	VerbForm=Inf	2	advcl	_	_
8	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	obj	_	_
9	hunt	hunt	VERB	VB	VerbForm=Inf	7	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **call down** *speech: assert* | to-infinitive |  |  | sea birds |  |  | down *property* | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent bird=Recipient |
| 2 | **help** | to-infinitive |  | it |  |  |  |  | vn help-72.1-1-1 «NP V NP S\_INF»: agent=Agent it=Beneficiary clause=Theme |
| 3 | **hunt** | infinitive |  |  |  |  |  |  | vn hunt-35.1 «NP V»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
To scare away the light

```conllu
# sent_id = question:biology:313-whales-by-kind-the-toothed-whales-sperm-whale-orca-beluga-and-beaked-whales:t9:o4:1
# text = To scare away the light
1	To	to	PART	TO	_	2	mark	_	_
2	scare	scare	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	away	away	ADP	RP	_	2	compound:prt	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	light	light	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **scare away** | to-infinitive |  | the light |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus light=Experiencer |

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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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