---
title: In The Little Mermaid, Sebastian the crab sings with two equal claws… — Mangroves: trees in salt water, mudski… · tree and pragmatics
description: In The Little Mermaid, Sebastian the crab sings with two equal claws. How is a male fiddler crab different? Test 4 · ★ of lesson 178 «Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers» of the biology course of Mova's primary school, with the dependency tree and pragmatics o
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/t4/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/questions/biology/) / [Mangroves: trees in salt water, mudski…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/) / t4

# Test 4 · ★ · Mangroves: trees in salt water, mudskippers, archerfish an…

<!-- .ven lang=en -->
In The Little Mermaid, Sebastian the crab sings with two equal claws. How is a male fiddler crab different?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** crab, male fiddler crab · **What happens:** sing, be

<!-- .vabout -->
This is test 4 · ★ of lesson 178 «Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers» 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/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/#t4).

## The question {#question}

<!-- .note -->
*Sentence 1:* In The Little Mermaid, Sebastian the crab sings with two equal claws.

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t4:1
# text = In The Little Mermaid, Sebastian the crab sings with two equal claws.
1	In	in	ADP	IN	_	4	case	_	_
2	The	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	Little	Little	ADJ	NNP	Degree=Pos	4	amod	_	_
4	Mermaid	Mermaid	PROPN	NNP	Number=Sing	9	obl	_	SpaceAfter=No
5	,	,	PUNCT	,	_	6	punct	_	_
6	Sebastian	Sebastian	PROPN	NNP	Number=Sing	4	flat	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	crab	crab	NOUN	NN	Number=Sing	9	nsubj	_	_
9	sings	sing	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
10	with	with	ADP	IN	_	13	case	_	_
11	two	two	NUM	CD	NumForm=Word|NumType=Card	13	nummod	_	_
12	equal	equal	ADJ	JJ	Degree=Pos	13	amod	_	_
13	claws	claw	NOUN	NNS	Number=Plur	9	obl	_	SpaceAfter=No
14	.	.	PUNCT	.	_	9	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **sing** *speech: express* | present | the crab |  |  |  |  | in the Little Mermaid; with two equal claws | vn sound\_emission-43.2 «NP.location V PP.theme»: agent=Location with claw=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.

<!-- .note -->
*Sentence 2:* How is a male fiddler crab different?

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t4:2
# text = How is a male fiddler crab different?
1	How	how	ADV	WRB	PronType=Int	7	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
4	male	male	ADJ	JJ	Degree=Pos	6	amod	_	_
5	fiddler	fiddler	NOUN	NN	Number=Sing	6	compound	_	_
6	crab	crab	NOUN	NN	Number=Sing	7	nsubj	_	_
7	different	different	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
8	?	?	PUNCT	.	_	7	punct	_	_
```

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

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Both claws are tiny and the same size

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t4:o1:1
# text = Both claws are tiny and the same size
1	Both	both	DET	DT	PronType=Tot	2	det	_	_
2	claws	claw	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	tiny	tiny	ADJ	JJ	Degree=Pos	0	root	_	_
5	and	and	CCONJ	CC	_	8	cc	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	same	same	ADJ	JJ	Degree=Pos	8	amod	_	_
8	size	size	NOUN	NN	Number=Sing	4	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | both claws |  |  |  |  | tiny *property* | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
It has four big claws, two on each side

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t4:o2:1
# text = It has four big claws, two on each side
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	four	four	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
4	big	big	ADJ	JJ	Degree=Pos	5	amod	_	_
5	claws	claw	NOUN	NNS	Number=Plur	2	obj	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	two	two	NUM	CD	NumForm=Word|NumType=Card	5	appos	_	_
8	on	on	ADP	IN	_	10	case	_	_
9	each	each	DET	DT	PronType=Tot	10	det	_	_
10	side	side	NOUN	NN	Number=Sing	7	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | It | four big claws |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent claw=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
It has no claws at all, only soft legs

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t4:o3:1
# text = It has no claws at all, only soft legs
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	no	no	DET	DT	PronType=Neg	4	det	_	_
4	claws	claw	NOUN	NNS	Number=Plur	2	obj	_	_
5	at	at	ADP	IN	_	6	case	_	_
6	all	all	DET	DT	PronType=Tot	4	nmod	_	SpaceAfter=No
7	,	,	PUNCT	,	_	10	punct	_	_
8	only	only	ADV	RB	_	10	advmod	_	_
9	soft	soft	ADJ	JJ	Degree=Pos	10	amod	_	_
10	legs	leg	NOUN	NNS	Number=Plur	4	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | It | no claws and soft legs |  | all |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent claw=Patient |

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

<!-- .ven lang=en -->
One claw is giant and one is small

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t4:o4:1
# text = One claw is giant and one is small
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	claw	claw	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	giant	giant	ADJ	JJ	Degree=Pos	0	root	_	_
5	and	and	CCONJ	CC	_	8	cc	_	_
6	one	one	NUM	CD	NumForm=Word|NumType=Card	8	nsubj	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	small	small	ADJ	JJ	Degree=Pos	4	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | One claw |  |  |  |  | giant *property* | tree rules |
| 2 | **is** | present | one |  |  |  |  | small *property* | tree rules |

<!-- div src -->

**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 -->

<!-- pn -->
- ← previous: [Mangroves: trees in salt water, mudski…, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/t3/)
- next →: [Mangroves: trees in salt water, mudski…, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/biology/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/t5/)
- ↑ back to [Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers](https://md.mova.elamur.ai/free/en/corpora/questions/biology/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/)