---
title: Identify the appropriate method for the separation of sand from water. — Mixtures and how to separate them · tree and pragmatics
description: Identify the appropriate method for the separation of sand from water. Exam question 1 of lesson 19 «Mixtures and how to separate them» of the world 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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# Exam question 1 · Mixtures and how to separate them

<!-- .ven lang=en -->
Identify the appropriate method for the separation of sand from water.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you, sand · **What happens:** identify, separate · **To what, where:** appropriate method

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This is exam question 1 of lesson 19 «Mixtures and how to separate them» of the world 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/world/19-mixtures-and-separating/#e1).

## The question {#question}

```conllu
# sent_id = question:world:19-mixtures-and-separating:e1:1
# text = Identify the appropriate method for the separation of sand from water.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	appropriate	appropriate	ADJ	JJ	Degree=Pos	4	amod	_	_
4	method	method	NOUN	NN	Number=Sing	1	obj	_	_
5	for	for	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	separation	separation	NOUN	NN	Number=Sing	4	nmod	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	sand	sand	NOUN	NN	Number=Sing	7	nmod	_	_
10	from	from	ADP	IN	_	11	case	_	_
11	water	water	NOUN	NN	Number=Sing	9	nmod	_	SpaceAfter=No
12	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the appropriate method |  |  |  | for the separation of sand from water | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent method=Theme |
| 2 | **separate** |  | sand from water |  |  |  |  |  | nom separation «state 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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Dissolution

```conllu
# sent_id = question:world:19-mixtures-and-separating:e1:o1:1
# text = Dissolution
1	Dissolution	dissolution	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
Use of a sieve with large holes

```conllu
# sent_id = question:world:19-mixtures-and-separating:e1:o2:1
# text = Use of a sieve with large holes
1	Use	use	NOUN	NN	Number=Sing	0	root	_	_
2	of	of	ADP	IN	_	4	case	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	sieve	sieve	NOUN	NN	Number=Sing	1	nmod	_	_
5	with	with	ADP	IN	_	7	case	_	_
6	large	large	ADJ	JJ	Degree=Pos	7	amod	_	_
7	holes	hole	NOUN	NNS	Number=Plur	4	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use** |  |  | a sieve with large holes |  |  |  |  | nom use «act transitive»: of=patient |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Filtration

```conllu
# sent_id = question:world:19-mixtures-and-separating:e1:o3:1
# text = Filtration
1	Filtration	filtration	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
Use of a magnet

```conllu
# sent_id = question:world:19-mixtures-and-separating:e1:o4:1
# text = Use of a magnet
1	Use	use	NOUN	NN	Number=Sing	0	root	_	_
2	of	of	ADP	IN	_	4	case	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	magnet	magnet	NOUN	NN	Number=Sing	1	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use** |  |  | a magnet |  |  |  |  | nom use «act transitive»: of=patient |

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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: [Mixtures and how to separate them, test 13](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/t13/)
- next →: [Mixtures and how to separate them, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/e2/)
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