---
title: Count them: 3 epaulette sharks walk across a reef using their paired… — Sharks by kind, small and strange: wal… · tree and pragmatics
description: Count them: 3 epaulette sharks walk across a reef using their paired fins as legs. How many fin-legs are moving? Test 2 · ★ of lesson 311 «Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin sharks» of the biology course of Mova's primary school, with the dependen
---

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# Test 2 · ★ · Sharks by kind, small and strange: walking sharks, wobbego…

<!-- .ven lang=en -->
Count them: 3 epaulette sharks walk across a reef using their paired fins as legs. How many fin-legs are moving?

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**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you, 3 epaulette sharks, many fin legs · **What happens:** count, walk, use, pair, move · **To what, where:** them, reef, paired fins

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This is test 2 · ★ of lesson 311 «Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin sharks» 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/311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks/#t2).

## The question {#question}

<!-- .note -->
*Sentence 1:* Count them: 3 epaulette sharks walk across a reef using their paired fins as legs.

```conllu
# sent_id = question:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks:t2:1
# text = Count them: 3 epaulette sharks walk across a reef using their paired fins as legs.
1	Count	count	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	1	obj	_	SpaceAfter=No
3	:	:	PUNCT	:	_	1	punct	_	_
4	3	3	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	_	_
5	epaulette	epaulette	NOUN	NN	Number=Sing	6	compound	_	_
6	sharks	shark	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	walk	walk	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	1	parataxis	_	_
8	across	across	ADP	IN	_	10	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	reef	reef	NOUN	NN	Number=Sing	7	obl	_	_
11	using	use	VERB	VBG	Tense=Pres|VerbForm=Part	7	advcl	_	_
12	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	14	nmod:poss	_	_
13	paired	pair	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	14	amod	_	_
14	fins	fin	NOUN	NNS	Number=Plur	11	obj	_	_
15	as	as	ADP	IN	_	16	case	_	_
16	legs	leg	NOUN	NNS	Number=Plur	11	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **count** | imperative | you *not said here* | them *= they* |  |  |  |  | vn multiply-108 «NP V NP»: agent=Agent they=Theme |
| 2 | **walk** | present | 3 epaulette sharks |  |  | a reef |  |  | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme across reef=Trajectory |
| 3 | **use** | gerund | 3 epaulette sharks *not said here* | sharks's paired fins |  |  |  | as legs | vn spend\_time-104 «NP V NP PP.attribute»: agent=Agent fin=Duration as leg=Attribute |
| 4 | **pair** | participle |  |  |  |  |  |  | vn amalgamate-22.2-2 «NP V ADVP-Middle»: 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:* How many fin-legs are moving?

```conllu
# sent_id = question:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks:t2:2
# text = How many fin-legs are moving?
1	How	how	ADV	WRB	PronType=Int	2	advmod	_	_
2	many	many	ADJ	JJ	Degree=Pos	5	amod	_	_
3	fin	fin	NOUN	NN	Number=Sing	5	compound	_	SpaceAfter=No
4	-	-	PUNCT	HYPH	_	3	punct	_	SpaceAfter=No
5	legs	leg	NOUN	NNS	Number=Plur	7	nsubj	_	_
6	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	aux	_	_
7	moving	move	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	SpaceAfter=No
8	?	?	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **move** | present · progressive | many fin legs |  |  |  |  |  | vn roll-51.3.1 «NP.theme V»: agent=Theme |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
9

```conllu
# sent_id = question:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks:t2:o1:1
# text = 9
1	9	9	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
3

```conllu
# sent_id = question:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks:t2:o2:1
# text = 3
1	3	3	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
12

```conllu
# sent_id = question:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks:t2:o3:1
# text = 12
1	12	12	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
6

```conllu
# sent_id = question:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks:t2:o4:1
# text = 6
1	6	6	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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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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