---
title: How can you get salt back from salty water? — Materials and their properties · tree and pragmatics
description: How can you get salt back from salty water? Test 6 · ★★ of lesson 18 «Materials and their properties» 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 right.
---

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# Test 6 · ★★ · Materials and their properties

<!-- .ven lang=en -->
How can you get salt back from salty water?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** you · **What happens:** get back · **To what, where:** salt, salty water

<!-- .vabout -->
This is test 6 · ★★ of lesson 18 «Materials and their properties» of the world 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/world/18-materials-and-properties/#t6).

## The question {#question}

```conllu
# sent_id = question:world:18-materials-and-properties:t6:1
# text = How can you get salt back from salty water?
1	How	how	ADV	WRB	PronType=Int	4	advmod	_	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	_	_
4	get	get	VERB	VB	VerbForm=Inf	0	root	_	_
5	salt	salt	NOUN	NN	Number=Sing	4	obj	_	_
6	back	back	ADV	RB	_	4	advmod	_	_
7	from	from	ADP	IN	_	9	case	_	_
8	salty	salty	ADJ	JJ	Degree=Pos	9	amod	_	_
9	water	water	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
10	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **get back** | can | you | salt |  | salty water |  |  | vn get-13.5.1-1 «NP V NP PP.source»: agent=Agent salt=Theme from water=Source |

<!-- .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 {#o1}

<!-- .ven lang=en -->
Pour it through filter paper

```conllu
# sent_id = question:world:18-materials-and-properties:t6:o1:1
# text = Pour it through filter paper
1	Pour	pour	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	1	obj	_	_
3	through	through	ADP	IN	_	5	case	_	_
4	filter	filter	NOUN	NN	Number=Sing	5	compound	_	_
5	paper	paper	NOUN	NN	Number=Sing	1	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pour** | imperative | you *not said here* | it |  | filter paper |  |  | vn preparing-26.3-2 «NP V NP»: agent=Agent it=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
Pour it through a sieve

```conllu
# sent_id = question:world:18-materials-and-properties:t6:o2:1
# text = Pour it through a sieve
1	Pour	pour	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	1	obj	_	_
3	through	through	ADP	IN	_	5	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	sieve	sieve	NOUN	NN	Number=Sing	1	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pour** | imperative | you *not said here* | it |  | a sieve |  |  | vn preparing-26.3-2 «NP V NP»: agent=Agent it=Patient |

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

<!-- .ven lang=en -->
Let the water evaporate

```conllu
# sent_id = question:world:18-materials-and-properties:t6:o3:1
# text = Let the water evaporate
1	Let	let	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	water	water	NOUN	NN	Number=Sing	1	obj	_	_
4	evaporate	evaporate	VERB	VB	VerbForm=Inf	1	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **let** | imperative | you *not said here* | the water |  |  |  |  | tree rules |
| 2 | **evaporate** | infinitive | the water *not said here* |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
Stir it very fast

```conllu
# sent_id = question:world:18-materials-and-properties:t6:o4:1
# text = Stir it very fast
1	Stir	stir	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	1	obj	_	_
3	very	very	ADV	RB	_	4	advmod	_	_
4	fast	fast	ADV	RB	Degree=Pos	1	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stir** | imperative | you *not said here* | it |  |  |  | fast *property* | vn amuse-31.1 «NP V NP»: agent=Stimulus it=Experiencer |

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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: [Materials and their properties, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/world/18-materials-and-properties/t5/)
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