---
title: Count them: 3 hermit crabs in a tank. How many legs really, and how… — Unusual pets: stick insects, giant sna… · tree and pragmatics
description: Count them: 3 hermit crabs in a tank. How many legs really, and how many are easy to see? Test 2 · ★★★ of lesson 330 «Unusual pets: stick insects, giant snails, ant farms and hermit crabs» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of 
---

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# Test 2 · ★★★ · Unusual pets: stick insects, giant snails, ant farms and h…

<!-- .ven lang=en -->
Count them: 3 hermit crabs in a tank. How many legs really, and how many are easy to see?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you, many legs · **What happens:** count, be, see · **To what, where:** them

<!-- .vabout -->
This is test 2 · ★★★ of lesson 330 «Unusual pets: stick insects, giant snails, ant farms and hermit crabs» 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/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/#t2).

## The question {#question}

<!-- .note -->
*Sentence 1:* Count them: 3 hermit crabs in a tank.

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:t2:1
# text = Count them: 3 hermit crabs in a tank.
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	hermit	hermit	NOUN	NN	Number=Sing	6	compound	_	_
6	crabs	crab	NOUN	NNS	Number=Plur	1	obj	_	_
7	in	in	ADP	IN	_	9	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	tank	tank	NOUN	NN	Number=Sing	6	nmod	_	SpaceAfter=No
10	.	.	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* |  |  |  |  | tree rules |

<!-- .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 legs really, and how many are easy to see?

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:t2:2
# text = How many legs really, and how many are easy to see?
1	How	how	ADV	WRB	PronType=Int	2	advmod	_	_
2	many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
3	legs	leg	NOUN	NNS	Number=Plur	10	nsubj	_	_
4	really	really	ADV	RB	_	10	advmod	_	SpaceAfter=No
5	,	,	PUNCT	,	_	10	punct	_	_
6	and	and	CCONJ	CC	_	10	cc	_	_
7	how	how	ADV	WRB	PronType=Int	8	advmod	_	_
8	many	many	ADJ	JJ	Degree=Pos	10	nsubj	_	_
9	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	_
10	easy	easy	ADJ	JJ	Degree=Pos	0	root	_	_
11	to	to	PART	TO	_	12	mark	_	_
12	see	see	VERB	VB	VerbForm=Inf	10	xcomp	_	SpaceAfter=No
13	?	?	PUNCT	.	_	10	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | many legs |  |  |  |  | easy *property* | tree rules |
| 2 | **see** | to-infinitive | many legs *not said here* |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
18 legs, with 18 easy to see

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:t2:o1:1
# text = 18 legs, with 18 easy to see
1	18	18	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	legs	leg	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	6	punct	_	_
4	with	with	ADP	IN	_	6	case	_	_
5	18	18	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	_	_
6	easy	easy	ADJ	JJ	Degree=Pos	2	conj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	see	see	VERB	VB	VerbForm=Inf	6	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | to-infinitive |  |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |

### Option 2 {#o2}

<!-- .ven lang=en -->
30 legs, with 30 easy to see

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:t2:o2:1
# text = 30 legs, with 30 easy to see
1	30	30	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	legs	leg	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	6	punct	_	_
4	with	with	ADP	IN	_	6	case	_	_
5	30	30	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	_	_
6	easy	easy	ADJ	JJ	Degree=Pos	2	conj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	see	see	VERB	VB	VerbForm=Inf	6	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | to-infinitive |  |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |

### Option 3 {#o3}

<!-- .ven lang=en -->
24 legs, with 18 easy to see

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:t2:o3:1
# text = 24 legs, with 18 easy to see
1	24	24	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	legs	leg	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	6	punct	_	_
4	with	with	ADP	IN	_	6	case	_	_
5	18	18	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	_	_
6	easy	easy	ADJ	JJ	Degree=Pos	2	conj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	see	see	VERB	VB	VerbForm=Inf	6	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | to-infinitive |  |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
30 legs, with 18 easy to see

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:t2:o4:1
# text = 30 legs, with 18 easy to see
1	30	30	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	legs	leg	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	6	punct	_	_
4	with	with	ADP	IN	_	6	case	_	_
5	18	18	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	_	_
6	easy	easy	ADJ	JJ	Degree=Pos	2	conj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	see	see	VERB	VB	VerbForm=Inf	6	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | to-infinitive |  |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=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.

<!-- /div -->

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- next →: [Unusual pets: stick insects, giant sna…, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/t3/)
- ↑ back to [Unusual pets: stick insects, giant snails, ant farms and hermit crabs](https://md.mova.elamur.ai/free/en/corpora/questions/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/)