---
title: «white sandy beach so pretty» Which surprising fact is true? — Coral reefs, rockpools and the seashore · tree and pragmatics
description: «white sandy beach so pretty» Which surprising fact is true? Test 8 · ★★ of lesson 9 «Coral reefs, rockpools and the seashore» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 8 · ★★ · Coral reefs, rockpools and the seashore

<!-- .ven lang=en -->
«white sandy beach so pretty» Which surprising fact is true?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **What happens:** be

<!-- .vabout -->
This is test 8 · ★★ of lesson 9 «Coral reefs, rockpools and the seashore» 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/9-coral-reefs-rockpools-and-the-seashore/#t8).

## The question {#question}

```conllu
# sent_id = question:biology:9-coral-reefs-rockpools-and-the-seashore:t8:1
# text = «white sandy beach so pretty» Which surprising fact is true?
1	«	«	PUNCT	``	_	4	punct	_	SpaceAfter=No
2	white	white	ADJ	JJ	Degree=Pos	4	amod	_	_
3	sandy	sandy	ADJ	JJ	Degree=Pos	4	amod	_	_
4	beach	beach	NOUN	NN	Number=Sing	12	obl	_	_
5	so	so	ADV	RB	_	12	advmod	_	_
6	pretty	pretty	ADV	RB	_	12	advmod	_	SpaceAfter=No
7	»	»	PUNCT	''	_	6	punct	_	_
8	Which	which	PRON	WDT	PronType=Rel	12	nsubj	_	_
9	surprising	surprising	ADJ	JJ	Degree=Pos	10	amod	_	_
10	fact	fact	NOUN	NN	Number=Sing	12	nsubj	_	_
11	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	cop	_	_
12	true	true	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
13	?	?	PUNCT	.	_	12	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | white sandy beach *obl*; pretty, true *property* | 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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
All beach sand is made by crabs grinding shells with their claws

```conllu
# sent_id = question:biology:9-coral-reefs-rockpools-and-the-seashore:t8:o1:1
# text = All beach sand is made by crabs grinding shells with their claws
1	All	all	DET	DT	PronType=Tot	3	det	_	_
2	beach	beach	NOUN	NN	Number=Sing	3	compound	_	_
3	sand	sand	NOUN	NN	Number=Sing	5	nsubj:pass	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux:pass	_	_
5	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	by	by	ADP	IN	_	7	case	_	_
7	crabs	crab	NOUN	NNS	Number=Plur	5	obl	_	_
8	grinding	grind	VERB	VBG	VerbForm=Ger	7	acl	_	_
9	shells	shell	NOUN	NNS	Number=Plur	8	obj	_	_
10	with	with	ADP	IN	_	12	case	_	_
11	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	12	nmod:poss	_	_
12	claws	claw	NOUN	NNS	Number=Plur	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present · passive | crabs | all beach sand |  |  |  |  | vn build-26.1-1 «NP V NP»: agent=Agent subject=Product |
| 2 | **grind** | gerund | crabs *not said here* | shells |  |  |  | with shells's claws | vn carve-21.2-1 «NP V NP PP.instrument»: agent=Agent shell=Patient with claw=Instrument |

### Option 2 {#o2}

<!-- .ven lang=en -->
White sand is ground-up seaweed

```conllu
# sent_id = question:biology:9-coral-reefs-rockpools-and-the-seashore:t8:o2:1
# text = White sand is ground-up seaweed
1	White	white	ADJ	JJ	Degree=Pos	2	amod	_	_
2	sand	sand	NOUN	NN	Number=Sing	7	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
4	ground	ground	NOUN	NN	Number=Sing	6	compound	_	SpaceAfter=No
5	-	-	PUNCT	HYPH	_	6	punct	_	SpaceAfter=No
6	up	up	NOUN	NN	Number=Sing	7	compound	_	_
7	seaweed	seaweed	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | White sand | up seaweed |  |  |  |  | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
White sand is made of salt

```conllu
# sent_id = question:biology:9-coral-reefs-rockpools-and-the-seashore:t8:o3:1
# text = White sand is made of salt
1	White	white	ADJ	JJ	Degree=Pos	2	amod	_	_
2	sand	sand	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	salt	salt	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present · passive |  | White sand |  |  |  | of salt | vn build-26.1-1 «NP.asset V NP»: subject=Product |

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

<!-- .ven lang=en -->
Some white tropical beach sand comes partly from parrotfish poo

```conllu
# sent_id = question:biology:9-coral-reefs-rockpools-and-the-seashore:t8:o4:1
# text = Some white tropical beach sand comes partly from parrotfish poo
1	Some	some	DET	DT	PronType=Ind	5	det	_	_
2	white	white	ADJ	JJ	Degree=Pos	4	amod	_	_
3	tropical	tropical	ADJ	JJ	Degree=Pos	4	amod	_	_
4	beach	beach	NOUN	NN	Number=Sing	5	compound	_	_
5	sand	sand	NOUN	NN	Number=Sing	6	nsubj	_	_
6	comes	come	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	partly	partly	ADV	RB	_	6	advmod	_	_
8	from	from	ADP	IN	_	10	case	_	_
9	parrotfish	parrotfish	NOUN	NN	Number=Sing	10	compound	_	_
10	poo	poo	NOUN	NN	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **come** | present | some beach sand |  |  | parrotfish poo |  | partly *property* | vn escape-51.1-1 «NP V PP.initial\_location»: agent=Theme from poo=Initial\_Location |

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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.

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- ← previous: [Coral reefs, rockpools and the seashore, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/biology/9-coral-reefs-rockpools-and-the-seashore/t7/)
- next →: [Coral reefs, rockpools and the seashore, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/biology/9-coral-reefs-rockpools-and-the-seashore/t9/)
- ↑ back to [Coral reefs, rockpools and the seashore](https://md.mova.elamur.ai/free/en/corpora/questions/biology/9-coral-reefs-rockpools-and-the-seashore/)