---
title: A scientist sees scalloped hammerheads together at noon but alone at… — Sharks by kind: great white, tiger, bu… · tree and pragmatics
description: A scientist sees scalloped hammerheads together at noon but alone at midnight. What explains it? Test 10 · ★★★ of lesson 310 «Sharks by kind: great white, tiger, bull and hammerhead» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each o
---

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# Test 10 · ★★★ · Sharks by kind: great white, tiger, bull and hammerhead

<!-- .ven lang=en -->
A scientist sees scalloped hammerheads together at noon but alone at midnight. What explains it?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** scientist · **What happens:** see, scallop, explain · **To what, where:** scalloped hammerheads, scientist

<!-- .vabout -->
This is test 10 · ★★★ of lesson 310 «Sharks by kind: great white, tiger, bull and hammerhead» 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/310-sharks-by-kind-great-white-tiger-bull-and-hammerhead/#t10).

## The question {#question}

<!-- .note -->
*Sentence 1:* A scientist sees scalloped hammerheads together at noon but alone at midnight.

```conllu
# sent_id = question:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead:t10:1
# text = A scientist sees scalloped hammerheads together at noon but alone at midnight.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	scientist	scientist	NOUN	NN	Number=Sing	3	nsubj	_	_
3	sees	see	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	scalloped	scallop	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	amod	_	_
5	hammerheads	hammerhead	NOUN	NNS	Number=Plur	3	obj	_	_
6	together	together	ADV	RB	_	3	advmod	_	_
7	at	at	ADP	IN	_	8	case	_	_
8	noon	noon	NOUN	NN	Number=Sing	3	obl	_	_
9	but	but	CCONJ	CC	_	12	cc	_	_
10	alone	alone	ADV	RB	_	12	advmod	_	_
11	at	at	ADP	IN	_	12	case	_	_
12	midnight	midnight	NOUN	NN	Number=Sing	8	conj	_	SpaceAfter=No
13	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | present | a scientist | scalloped hammerheads |  |  | noon | together *property* | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer hammerhead=Stimulus |
| 2 | **scallop** | participle |  |  |  |  |  |  | vn cooking-45.3 «NP.patient V»: 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.

<!-- .note -->
*Sentence 2:* What explains it?

```conllu
# sent_id = question:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead:t10:2
# text = What explains it?
1	What	what	PRON	WP	PronType=Int	2	nsubj	_	_
2	explains	explain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	obj	_	SpaceAfter=No
4	?	?	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **explain** *speech: assert* | present |  | scientist |  |  |  |  | vn transfer\_mesg-37.1.1 «NP V NP»: agent=Agent it=Topic |

## The options {#options}

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

<!-- .ven lang=en -->
They school by day and split up at night to hunt alone

```conllu
# sent_id = question:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead:t10:o1:1
# text = They school by day and split up at night to hunt alone
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	6	nsubj	_	_
2	school	school	NOUN	NN	Number=Sing	1	flat	_	_
3	by	by	ADP	IN	_	4	case	_	_
4	day	day	NOUN	NN	Number=Sing	1	nmod	_	_
5	and	and	CCONJ	CC	_	6	cc	_	_
6	split	split	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
7	up	up	ADP	RP	_	6	compound:prt	_	_
8	at	at	ADP	IN	_	9	case	_	_
9	night	night	NOUN	NN	Number=Sing	6	obl	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	hunt	hunt	VERB	VB	VerbForm=Inf	6	advcl	_	_
12	alone	alone	ADV	RB	_	11	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **split up** | past | They |  |  |  | night |  | vn interact-36.6 «NP V»: agent=Agent |
| 2 | **hunt** | to-infinitive | They *not said here* |  |  |  |  | alone *property* | vn hunt-35.1 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
They are lost at night

```conllu
# sent_id = question:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead:t10:o2:1
# text = They are lost at night
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	lost	lose	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	at	at	ADP	IN	_	5	case	_	_
5	night	night	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **lose** | present · passive |  | They |  |  | night |  | vn succeed-74-3-1 «NP V NP»: subject=Eventuality |

### Option 3 {#o3}

<!-- .ven lang=en -->
They are two different species

```conllu
# sent_id = question:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead:t10:o3:1
# text = They are two different species
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	5	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	two	two	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
4	different	different	ADJ	JJ	Degree=Pos	5	amod	_	_
5	species	species	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | They | two different species |  |  |  |  | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
They sleep together in big groups at midnight

```conllu
# sent_id = question:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead:t10:o4:1
# text = They sleep together in big groups at midnight
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	sleep	sleep	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	together	together	ADV	RB	_	2	advmod	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	big	big	ADJ	JJ	Degree=Pos	6	amod	_	_
6	groups	group	NOUN	NNS	Number=Plur	2	obl	_	_
7	at	at	ADP	IN	_	8	case	_	_
8	midnight	midnight	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **sleep together** | present | They |  |  | big groups | midnight | together *property* | vn fit-54.3 «NP V NP PP.location»: agent=Agent in group=Location |

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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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