---
title: What would happen if you tried to filter salt out of salty water wit… — Separating mixtures · tree and pragmatics
description: What would happen if you tried to filter salt out of salty water with a coffee filter? Test 2 of lesson 8 «Separating mixtures» of the chemistry 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 2 · Separating mixtures

<!-- .ven lang=en -->
What would happen if you tried to filter salt out of salty water with a coffee filter?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** happen, try, filter · **To what, where:** salt, salty water

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This is test 2 of lesson 8 «Separating mixtures» of the chemistry 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/chemistry/8-separating-mixtures/#t2).

## The question {#question}

```conllu
# sent_id = question:chemistry:8-separating-mixtures:t2:1
# text = What would happen if you tried to filter salt out of salty water with a coffee filter?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	happen	happen	VERB	VB	VerbForm=Inf	0	root	_	_
4	if	if	SCONJ	IN	_	6	mark	_	_
5	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	_	_
6	tried	try	VERB	VBD	Mood=Ind|Number=Sing|Person=2|Tense=Past|VerbForm=Fin	3	advcl	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	filter	filter	VERB	VB	VerbForm=Inf	6	xcomp	_	_
9	salt	salt	NOUN	NN	Number=Sing	8	obj	_	_
10	out	out	ADP	IN	_	13	case	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	salty	salty	ADJ	JJ	Degree=Pos	13	amod	_	_
13	water	water	NOUN	NN	Number=Sing	8	obl	_	_
14	with	with	ADP	IN	_	17	case	_	_
15	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	_	_
16	coffee	coffee	NOUN	NN	Number=Sing	17	compound	_	_
17	filter	filter	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
18	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | would |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **try** *a condition, not said to happen* | past | you |  |  |  |  |  | vn try-61.1 «NP V S\_INF»: agent=Agent clause=Eventuality |
| 3 | **filter** *not said to happen* | to-infinitive | you *not said here* | salt |  | salty water |  | with a coffee filter | vn wipe\_instr-10.4.2 «NP V NP PP.initial\_location»: agent=Agent salt=Theme out water=Initial\_Location |

<!-- .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 -->
The salt would be caught and stay behind in the filter

```conllu
# sent_id = question:chemistry:8-separating-mixtures:t2:o1:1
# text = The salt would be caught and stay behind in the filter
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	salt	salt	NOUN	NN	Number=Sing	5	nsubj:pass	_	_
3	would	would	AUX	MD	VerbForm=Fin	5	aux	_	_
4	be	be	AUX	VB	VerbForm=Inf	5	aux:pass	_	_
5	caught	catch	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	stay	stay	VERB	VB	VerbForm=Inf	5	conj	_	_
8	behind	behind	ADV	RB	_	7	advmod	_	_
9	in	in	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	filter	filter	NOUN	NN	Number=Sing	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **catch** | would · passive |  | the salt |  |  |  |  | vn get-13.5.1 «NP V NP»: subject=Theme |
| 2 | **stay** | infinitive |  |  |  | the filter |  | behind *property* | vn exist-47.1 «NP V PP.location»: agent=Theme in filter=Location |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
The water would stay in the filter

```conllu
# sent_id = question:chemistry:8-separating-mixtures:t2:o2:1
# text = The water would stay in the filter
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	water	water	NOUN	NN	Number=Sing	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	stay	stay	VERB	VB	VerbForm=Inf	0	root	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	filter	filter	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stay** | would | the water |  |  | the filter |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme in filter=Location |

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

<!-- .ven lang=en -->
The salt would pass straight through, dissolved

```conllu
# sent_id = question:chemistry:8-separating-mixtures:t2:o3:1
# text = The salt would pass straight through, dissolved
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	salt	salt	NOUN	NN	Number=Sing	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	pass	pass	VERB	VB	VerbForm=Inf	0	root	_	_
5	straight	straight	ADV	RB	_	6	advmod	_	_
6	through	through	ADV	RB	_	4	advmod	_	SpaceAfter=No
7	,	,	PUNCT	,	_	8	punct	_	_
8	dissolved	dissolve	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pass** | would | the salt |  |  |  |  | through *property* | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **dissolve** | participle | the salt *not said here* |  |  |  |  |  | vn break-45.1 «NP.patient V»: agent=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
The salt would turn into sand

```conllu
# sent_id = question:chemistry:8-separating-mixtures:t2:o4:1
# text = The salt would turn into sand
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	salt	salt	NOUN	NN	Number=Sing	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	turn	turn	VERB	VB	VerbForm=Inf	0	root	_	_
5	into	into	ADP	IN	_	6	case	_	_
6	sand	sand	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn** | would | the salt |  |  | sand |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme into sand=Trajectory |

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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: [Separating mixtures, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/t1/)
- next →: [Separating mixtures, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/t3/)
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