---
title: Which cannot be separated by filtering? — Mixtures and how to separate them · tree and pragmatics
description: Which cannot be separated by filtering? Test 5 · ★★ 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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# Test 5 · ★★ · Mixtures and how to separate them

<!-- .ven lang=en -->
Which cannot be separated by filtering?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **What happens:** not separate, filter

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This is test 5 · ★★ of lesson 19 «Mixtures and how to separate them» 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/19-mixtures-and-separating/#t5).

## The question {#question}

```conllu
# sent_id = question:world:19-mixtures-and-separating:t5:1
# text = Which cannot be separated by filtering?
1	Which	which	PRON	WDT	PronType=Rel	5	nsubj:pass	_	_
2	can	can	AUX	MD	VerbForm=Fin	5	aux	_	SpaceAfter=No
3	not	not	PART	RB	Polarity=Neg	5	advmod	_	_
4	be	be	AUX	VB	VerbForm=Inf	5	aux:pass	_	_
5	separated	separate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	by	by	SCONJ	IN	_	7	mark	_	_
7	filtering	filter	VERB	VBG	Tense=Pres|VerbForm=Part	5	advcl	_	SpaceAfter=No
8	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **separate** | can · passive |  |  |  |  |  |  | vn separate-23.1-1-1 «NP V NP»: subject=Patient |
| 2 | **filter** | gerund |  |  |  |  |  |  | vn wipe\_instr-10.4.2 «NP.agent V»: agent=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 -->
Tea leaves floating in tea

```conllu
# sent_id = question:world:19-mixtures-and-separating:t5:o1:1
# text = Tea leaves floating in tea
1	Tea	tea	NOUN	NN	Number=Sing	2	compound	_	_
2	leaves	leaf	NOUN	NNS	Number=Plur	0	root	_	_
3	floating	float	VERB	VBG	VerbForm=Ger	2	acl	_	_
4	in	in	ADP	IN	_	5	case	_	_
5	tea	tea	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **float** | gerund | Tea leaves *not said here* |  |  | tea |  |  | vn run-51.3.2-2 «NP V PP.location»: agent=Theme in tea=Trajectory |

### Option 2 {#o2}

<!-- .ven lang=en -->
Sand stirred into water

```conllu
# sent_id = question:world:19-mixtures-and-separating:t5:o2:1
# text = Sand stirred into water
1	Sand	sand	NOUN	NN	Number=Sing	0	root	_	_
2	stirred	stir	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	1	acl	_	_
3	into	into	ADP	IN	_	4	case	_	_
4	water	water	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stir** | participle |  | Sand *not said here* |  |  |  | into water | vn shake-22.3-1-1 «NP V PP ADV-Middle»: agent=Patient into water=Co-Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Chalk dust mixed into water

```conllu
# sent_id = question:world:19-mixtures-and-separating:t5:o3:1
# text = Chalk dust mixed into water
1	Chalk	chalk	NOUN	NN	Number=Sing	2	compound	_	_
2	dust	dust	NOUN	NN	Number=Sing	0	root	_	_
3	mixed	mix	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	into	into	ADP	IN	_	5	case	_	_
5	water	water	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **mix** | participle |  | Chalk dust *not said here* |  |  |  | into water | vn mix-22.1-1-1 «NP V PP.co-patient»: agent=Patient into water=Co-Patient |

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

<!-- .ven lang=en -->
Sugar dissolved in tea

```conllu
# sent_id = question:world:19-mixtures-and-separating:t5:o4:1
# text = Sugar dissolved in tea
1	Sugar	sugar	NOUN	NN	Number=Sing	0	root	_	_
2	dissolved	dissolve	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	1	acl	_	_
3	in	in	ADP	IN	_	4	case	_	_
4	tea	tea	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dissolve** | participle |  | Sugar *not said here* |  | tea |  |  | vn break-45.1 «NP.patient V»: agent=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 4](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/t4/)
- next →: [Mixtures and how to separate them, test 6](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/t6/)
- ↑ back to [Mixtures and how to separate them](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/)