---
title: It is given that tides of exceptional height occur periodically. Sel… — Just So Stories, The Crab that Played… · tree and pragmatics
description: It is given that tides of exceptional height occur periodically. Select the response consistent with the established scientific facts. Exam question 3 of lesson 92 «Just So Stories, The Crab that Played with the Sea, part 3: the Moon pulls the sea, and how tides really work» of the books course of M
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/books/92-justso-crab-3-the-moon-pulls-the-sea/e3/)

<!-- 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/) / [Books](https://md.mova.elamur.ai/free/en/corpora/questions/books/) / [Just So Stories, The Crab that Played…](https://md.mova.elamur.ai/free/en/corpora/questions/books/92-justso-crab-3-the-moon-pulls-the-sea/) / e3

# Exam question 3 · Just So Stories, The Crab that Played with the Sea, part 3…

<!-- .ven lang=en -->
It is given that tides of exceptional height occur periodically. Select the response consistent with the established scientific facts.

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** tides, exceptional height, you · **What happens:** give, occur, tide, select, establish · **To what, where:** It, response

<!-- .vabout -->
This is exam question 3 of lesson 92 «Just So Stories, The Crab that Played with the Sea, part 3: the Moon pulls the sea, and how tides really work» of the books course of Mova's primary school, asked in stiff, formal language. 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/books/92-justso-crab-3-the-moon-pulls-the-sea/#e3).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that tides of exceptional height occur periodically.

```conllu
# sent_id = question:books:92-justso-crab-3-the-moon-pulls-the-sea:e3:1
# text = It is given that tides of exceptional height occur periodically.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	that	that	DET	DT	Number=Sing|PronType=Dem	5	det	_	_
5	tides	tide	NOUN	NNS	Number=Plur	9	nsubj	_	_
6	of	of	ADP	IN	_	8	case	_	_
7	exceptional	exceptional	ADJ	JJ	Degree=Pos	8	amod	_	_
8	height	height	NOUN	NN	Number=Sing	5	nmod	_	_
9	occur	occur	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	parataxis	_	_
10	periodically	periodically	ADV	RB	_	9	advmod	_	SpaceAfter=No
11	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | present · passive |  | It |  |  |  |  | vn give-13.1-1 «NP V NP»: subject=Theme |
| 2 | **occur** | present | that tides of exceptional height |  |  |  |  | periodically *property* | vn occur-48.3-1 «NP V»: agent=Theme |
| 3 | **tide** |  | exceptional height |  |  |  |  |  | nom tide «event intransitive»: of=agent |

<!-- .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:* Select the response consistent with the established scientific facts.

```conllu
# sent_id = question:books:92-justso-crab-3-the-moon-pulls-the-sea:e3:2
# text = Select the response consistent with the established scientific facts.
1	Select	select	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	response	response	NOUN	NN	Number=Sing	1	obj	_	_
4	consistent	consistent	ADJ	JJ	Degree=Pos	3	amod	_	_
5	with	with	ADP	IN	_	9	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
7	established	establish	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	amod	_	_
8	scientific	scientific	ADJ	JJ	Degree=Pos	9	amod	_	_
9	facts	fact	NOUN	NNS	Number=Plur	4	obl	_	SpaceAfter=No
10	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **select** | imperative | you *not said here* | the response |  |  |  |  | vn obtain-13.5.2 «NP V NP»: agent=Agent response=Theme |
| 2 | **establish** | participle |  |  |  |  |  |  | vn indicate-78-1-1 «NP V NP to be NP»: agent=Pivot |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Only the Moon matters

```conllu
# sent_id = question:books:92-justso-crab-3-the-moon-pulls-the-sea:e3:o1:1
# text = Only the Moon matters
1	Only	only	ADV	RB	_	4	advmod	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	Moon	Moon	PROPN	NNP	Number=Sing	4	nsubj	_	_
4	matters	matter	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **matter** | present | the Moon |  |  |  |  |  | vn matter-91 «NP V»: agent=Stimulus |

### Option 2 {#o2}

<!-- .ven lang=en -->
Tides are caused by the Moon's pull alone, with no Sun at all

<!-- fold The tree, 14 words -->
```conllu
# sent_id = question:books:92-justso-crab-3-the-moon-pulls-the-sea:e3:o2:1
# text = Tides are caused by the Moon's pull alone, with no Sun at all
1	Tides	tide	NOUN	NNS	Number=Plur	3	nsubj:pass	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	caused	cause	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	by	by	ADP	IN	_	8	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	Moon	Moon	PROPN	NNP	Number=Sing	8	nmod:poss	_	SpaceAfter=No
7	's	's	PART	POS	_	6	case	_	_
8	pull	pull	NOUN	NN	Number=Sing	3	obl	_	_
9	alone	alone	ADV	RB	_	3	advmod	_	SpaceAfter=No
10	,	,	PUNCT	,	_	13	punct	_	_
11	with	with	ADP	IN	_	13	case	_	_
12	no	no	DET	DT	PronType=Neg	13	det	_	_
13	Sun	Sun	PROPN	NNP	Number=Sing	3	obl	_	_
14	at	at	ADP	IN	_	15	case	_	_
15	all	all	DET	DT	PronType=Tot	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **cause** | present · passive | the Moon's pull | Tides |  | all |  | with no Sun; alone *property* | vn engender-27.1-1 «NP V NP»: agent=Precondition subject=Patient |
| 2 | **pull** |  | the Moon |  |  |  |  |  | nom pull «act transitive»: poss=agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
The Sun alone causes the tides, and they come once a day only

```conllu
# sent_id = question:books:92-justso-crab-3-the-moon-pulls-the-sea:e3:o3:1
# text = The Sun alone causes the tides, and they come once a day only
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Sun	Sun	PROPN	NNP	Number=Sing	4	nsubj	_	_
3	alone	alone	ADV	RB	_	4	advmod	_	_
4	causes	cause	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	tides	tide	NOUN	NNS	Number=Plur	4	obj	_	SpaceAfter=No
7	,	,	PUNCT	,	_	10	punct	_	_
8	and	and	CCONJ	CC	_	10	cc	_	_
9	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	10	nsubj	_	_
10	come	come	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	_
11	once	once	ADV	RB	NumForm=Word|NumType=Mult	10	advmod	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	day	day	NOUN	NN	Number=Sing	11	obl:unmarked	_	_
14	only	only	ADV	RB	_	10	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **cause** | present | the Sun | the tides |  |  |  | alone *property* | vn engender-27.1-1 «NP V NP»: agent=Precondition tide=Patient |
| 2 | **come** | present | tides *= tide* |  |  |  |  | once *property* | vn escape-51.1-1 «NP V»: agent=Theme |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Spring tides occur at new and full moon, when Sun and Moon act in line

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:books:92-justso-crab-3-the-moon-pulls-the-sea:e3:o4:1
# text = Spring tides occur at new and full moon, when Sun and Moon act in line
1	Spring	spring	NOUN	NN	Number=Sing	2	compound	_	_
2	tides	tide	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	occur	occur	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	at	at	ADP	IN	_	8	case	_	_
5	new	new	ADJ	JJ	Degree=Pos	8	amod	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	full	full	ADJ	JJ	Degree=Pos	5	conj	_	_
8	moon	moon	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
9	,	,	PUNCT	,	_	14	punct	_	_
10	when	when	SCONJ	WRB	_	14	mark	_	_
11	Sun	Sun	PROPN	NNP	Number=Sing	14	nsubj	_	_
12	and	and	CCONJ	CC	_	13	cc	_	_
13	Moon	Moon	PROPN	NNP	Number=Sing	11	conj	_	_
14	act	act	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
15	in	in	ADP	IN	_	16	case	_	_
16	line	line	NOUN	NN	Number=Sing	14	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **occur** | present | Spring tides |  |  | new moon |  |  | vn occur-48.3-1 «NP V PP»: agent=Theme at moon=Location |
| 2 | **act** | present | Sun and Moon |  |  | line |  |  | vn act-114-1-1 «NP V»: agent=Agent |

<!-- 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: [Just So Stories, The Crab that Played…, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/books/92-justso-crab-3-the-moon-pulls-the-sea/e2/)
- next →: [Just So Stories, The Crab that Played…, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/books/92-justso-crab-3-the-moon-pulls-the-sea/e4/)
- ↑ back to [Just So Stories, The Crab that Played with the Sea, part 3: the Moon pulls the sea, and how tides really work](https://md.mova.elamur.ai/free/en/corpora/questions/books/92-justso-crab-3-the-moon-pulls-the-sea/)