---
title: In Peter Pan the crocodile follows Captain Hook because it swallowed… — Mangroves: trees in salt water, mudski… · tree and pragmatics
description: In Peter Pan the crocodile follows Captain Hook because it swallowed a ticking clock. What is true of real saltwater crocodiles? Test 3 · ★ 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 
---

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# Test 3 · ★ · Mangroves: trees in salt water, mudskippers, archerfish an…

<!-- .ven lang=en -->
In Peter Pan the crocodile follows Captain Hook because it swallowed a ticking clock. What is true of real saltwater crocodiles?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** crocodile · **What happens:** follow, swallow, be · **To what, where:** Captain Hook, Peter, ticking clock

<!-- .vabout -->
This is test 3 · ★ 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/#t3).

## The question {#question}

<!-- .note -->
*Sentence 1:* In Peter Pan the crocodile follows Captain Hook because it swallowed a ticking clock.

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t3:1
# text = In Peter Pan the crocodile follows Captain Hook because it swallowed a ticking clock.
1	In	in	ADP	IN	_	2	case	_	_
2	Peter	Peter	PROPN	NNP	Number=Sing	6	obl	_	_
3	Pan	Pan	PROPN	NNP	Number=Sing	2	flat	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	crocodile	crocodile	NOUN	NN	Number=Sing	6	nsubj	_	_
6	follows	follow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	Captain	Captain	PROPN	NNP	Number=Sing	8	compound	_	_
8	Hook	hook	NOUN	NN	Number=Sing	6	obj	_	_
9	because	because	SCONJ	IN	_	11	mark	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	nsubj	_	_
11	swallowed	swallow	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	advcl	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	ticking	ticking	NOUN	NN	Number=Sing	14	compound	_	_
14	clock	clock	NOUN	NN	Number=Sing	11	obj	_	SpaceAfter=No
15	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present | the crocodile | Captain Hook |  | Peter |  |  | vn chase-51.6 «NP V NP PP.location»: agent=Agent hook=Theme in peter=Trajectory |
| 2 | **swallow** | past | crocodile | a ticking clock |  |  |  |  | vn gobble-39.3 «NP V NP»: agent=Agent clock=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 is true of real saltwater crocodiles?

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t3:2
# text = What is true of real saltwater crocodiles?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	true	true	ADJ	JJ	Degree=Pos	0	root	_	_
4	of	of	ADP	IN	_	7	case	_	_
5	real	real	ADJ	JJ	Degree=Pos	7	amod	_	_
6	saltwater	saltwater	NOUN	NN	Number=Sing	7	compound	_	_
7	crocodiles	crocodile	NOUN	NNS	Number=Plur	3	obl	_	SpaceAfter=No
8	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | of real saltwater crocodiles; true *property* | tree rules |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
They follow ticking sounds

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t3:o1:1
# text = They follow ticking sounds
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	follow	follow	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	ticking	tick	VERB	VBG	VerbForm=Ger	2	xcomp	_	_
4	sounds	sound	NOUN	NNS	Number=Plur	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present | They |  |  |  |  |  | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer clause=Stimulus |
| 2 | **tick** | gerund | They *not said here* | sounds |  |  |  |  | vn sound\_emission-43.2 «PP.location V NP»: agent=Location sound=Theme |

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

<!-- .ven lang=en -->
They are dangerous, so people must stay far from riverbanks

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t3:o2:1
# text = They are dangerous, so people must stay far from riverbanks
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	cop	_	_
3	dangerous	dangerous	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
4	,	,	PUNCT	,	_	8	punct	_	_
5	so	so	ADV	RB	_	8	advmod	_	_
6	people	people	NOUN	NNS	Number=Plur	8	nsubj	_	_
7	must	must	AUX	MD	VerbForm=Fin	8	aux	_	_
8	stay	stay	VERB	VB	VerbForm=Inf	3	conj	_	_
9	far	far	ADV	RB	Degree=Pos	8	advmod	_	_
10	from	from	ADP	IN	_	11	case	_	_
11	riverbanks	riverbank	NOUN	NNS	Number=Plur	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | They |  |  |  |  | dangerous *property* | tree rules |
| 2 | **stay** | must | people |  |  | riverbanks |  | far *property* | vn exist-47.1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
They live only in cold mountain lakes, far away from the sea and from people

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t3:o3:1
# text = They live only in cold mountain lakes, far away from the sea and from people
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	live	live	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	only	only	ADV	RB	_	7	advmod	_	_
4	in	in	ADP	IN	_	7	case	_	_
5	cold	cold	ADJ	JJ	Degree=Pos	7	amod	_	_
6	mountain	mountain	NOUN	NN	Number=Sing	7	compound	_	_
7	lakes	lake	NOUN	NNS	Number=Plur	2	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	10	punct	_	_
9	far	far	ADV	RB	Degree=Pos	10	advmod	_	_
10	away	away	ADV	RB	_	2	advmod	_	_
11	from	from	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	sea	sea	NOUN	NN	Number=Sing	10	obl	_	_
14	and	and	CCONJ	CC	_	16	cc	_	_
15	from	from	ADP	IN	_	16	case	_	_
16	people	people	NOUN	NNS	Number=Plur	10	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **live** | present | They |  |  | cold mountain lakes |  | away *property* | vn lodge-46 «NP V PP.location»: agent=Theme in lake=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
They are friendly to pirates

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t3:o4:1
# text = They are friendly to pirates
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	cop	_	_
3	friendly	friendly	ADJ	JJ	Degree=Pos	0	root	_	_
4	to	to	ADP	IN	_	5	case	_	_
5	pirates	pirate	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | They |  |  |  |  | to pirates; friendly *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 -->

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