---
title: After the first wave, people walk back down to the shore to look. Wh… — Tsunamis · tree and pragmatics
description: After the first wave, people walk back down to the shore to look. Why is that dangerous? Test 4 · ★ of lesson 45 «Tsunamis» of the geography course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 4 · ★ · Tsunamis

<!-- .ven lang=en -->
After the first wave, people walk back down to the shore to look. Why is that dangerous?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** people · **What happens:** walk back, look, be

<!-- .vabout -->
This is test 4 · ★ of lesson 45 «Tsunamis» of the geography 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/geography/45-tsunamis/#t4).

## The question {#question}

<!-- .note -->
*Sentence 1:* After the first wave, people walk back down to the shore to look.

```conllu
# sent_id = question:geography:45-tsunamis:t4:1
# text = After the first wave, people walk back down to the shore to look.
1	After	after	ADP	IN	_	4	case	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	first	first	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	4	amod	_	_
4	wave	wave	NOUN	NN	Number=Sing	7	obl	_	SpaceAfter=No
5	,	,	PUNCT	,	_	4	punct	_	_
6	people	people	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	walk	walk	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	back	back	ADV	RB	_	9	advmod	_	_
9	down	down	ADV	RB	_	7	advmod	_	_
10	to	to	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	shore	shore	NOUN	NN	Number=Sing	7	obl	_	_
13	to	to	PART	TO	_	14	mark	_	_
14	look	look	VERB	VB	VerbForm=Inf	7	advcl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **walk back** | present | people |  |  |  | after the first wave | to the shore *result*; down *property* | vn run-51.3.2-2-1 «NP V PP.result»: agent=Theme to shore=Result |
| 2 | **look** | to-infinitive | people *not said here* |  |  |  |  |  | vn stimulus\_subject-30.4 «NP V PP.attribute»: agent=Stimulus |

<!-- .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:* Why is that dangerous?

```conllu
# sent_id = question:geography:45-tsunamis:t4:2
# text = Why is that dangerous?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	that	that	SCONJ	IN	_	4	mark	_	_
4	dangerous	dangerous	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
5	?	?	PUNCT	.	_	4	punct	_	_
```

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

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
The first wave is always followed by a big fire on the beach

```conllu
# sent_id = question:geography:45-tsunamis:t4:o1:1
# text = The first wave is always followed by a big fire on the beach
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	first	first	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	3	amod	_	_
3	wave	wave	NOUN	NN	Number=Sing	6	nsubj:pass	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	aux:pass	_	_
5	always	always	ADV	RB	PronType=Tot	6	advmod	_	_
6	followed	follow	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	by	by	ADP	IN	_	10	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	big	big	ADJ	JJ	Degree=Pos	10	amod	_	_
10	fire	fire	NOUN	NN	Number=Sing	6	obl	_	_
11	on	on	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	beach	beach	NOUN	NN	Number=Sing	10	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present · passive | a big fire on the beach | the first wave |  |  |  | always *property* | vn chase-51.6 «NP V NP»: agent=Agent subject=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
It is not dangerous, once the first wave is gone the danger is over

<!-- fold The tree, 14 words -->
```conllu
# sent_id = question:geography:45-tsunamis:t4:o2:1
# text = It is not dangerous, once the first wave is gone the danger is over
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	dangerous	dangerous	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
5	,	,	PUNCT	,	_	11	punct	_	_
6	once	once	SCONJ	IN	_	11	mark	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	first	first	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	9	amod	_	_
9	wave	wave	NOUN	NN	Number=Sing	11	nsubj	_	_
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	cop	_	_
11	gone	go	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	parataxis	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	danger	danger	NOUN	NN	Number=Sing	11	obj	_	_
14	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	cop	_	_
15	over	over	ADV	RB	_	4	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **is** | present | It |  |  |  |  | dangerous *property* | tree rules |
| 2 | **is** | present | the first wave |  |  |  |  | go *property* | tree rules |
| 3 | **is** | present |  |  |  |  |  | over *property* | tree rules |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
More waves come minutes apart and the next may be bigger

```conllu
# sent_id = question:geography:45-tsunamis:t4:o3:1
# text = More waves come minutes apart and the next may be bigger
1	More	more	ADJ	JJR	Degree=Cmp	2	amod	_	_
2	waves	wave	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	come	come	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	minutes	minute	NOUN	NNS	Number=Plur	3	obj	_	_
5	apart	apart	ADV	RB	_	3	advmod	_	_
6	and	and	CCONJ	CC	_	11	cc	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	next	next	ADJ	JJ	Degree=Pos	11	nsubj	_	_
9	may	may	AUX	MD	VerbForm=Fin	11	aux	_	_
10	be	be	AUX	VB	VerbForm=Inf	11	cop	_	_
11	bigger	big	ADJ	JJR	Degree=Cmp	3	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **come** | present | More waves |  |  |  | minute | apart *property* | vn escape-51.1-1 «NP V»: agent=Theme |
| 2 | **is** | may | the next |  |  |  |  | big *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
The beach will be too hot to walk on

```conllu
# sent_id = question:geography:45-tsunamis:t4:o4:1
# text = The beach will be too hot to walk on
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	beach	beach	NOUN	NN	Number=Sing	6	nsubj	_	_
3	will	will	AUX	MD	VerbForm=Fin	6	aux	_	_
4	be	be	AUX	VB	VerbForm=Inf	6	cop	_	_
5	too	too	ADV	RB	_	6	advmod	_	_
6	hot	hot	ADJ	JJ	Degree=Pos	0	root	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	walk	walk	VERB	VB	VerbForm=Inf	6	advcl	_	_
9	on	on	ADP	IN	_	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | future | the beach |  |  |  |  | hot *property* | tree rules |
| 2 | **walk on** | to-infinitive | the beach *not said here* |  |  |  |  |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |

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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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