---
title: Why is a paper filter used when making coffee? — Mixtures and how to separate them · tree and pragmatics
description: Why is a paper filter used when making coffee? Test 9 · ★★ 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.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/t9/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/) / [Mixtures and how to separate them](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/) / t9

# Test 9 · ★★ · Mixtures and how to separate them

<!-- .ven lang=en -->
Why is a paper filter used when making coffee?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **What happens:** use, make · **To what, where:** paper filter, coffee

<!-- .vabout -->
This is test 9 · ★★ 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/#t9).

## The question {#question}

```conllu
# sent_id = question:world:19-mixtures-and-separating:t9:1
# text = Why is a paper filter used when making coffee?
1	Why	why	ADV	WRB	PronType=Int	6	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	aux:pass	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	paper	paper	NOUN	NN	Number=Sing	5	compound	_	_
5	filter	filter	NOUN	NN	Number=Sing	6	nsubj:pass	_	_
6	used	use	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	when	when	ADV	WRB	PronType=Int	8	advmod	_	_
8	making	make	VERB	VBG	Tense=Pres|VerbForm=Part	6	advcl	_	_
9	coffee	coffee	NOUN	NN	Number=Sing	8	obj	_	SpaceAfter=No
10	?	?	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use** | present · passive |  | a paper filter |  |  |  |  | vn eat-39.1 «NP V NP»: subject=Patient |
| 2 | **make** | gerund |  | coffee |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset coffee=Product |

<!-- .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 -->
It dissolves the coffee grounds

```conllu
# sent_id = question:world:19-mixtures-and-separating:t9:o1:1
# text = It dissolves the coffee grounds
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	dissolves	dissolve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	coffee	coffee	NOUN	NN	Number=Sing	5	compound	_	_
5	grounds	grounds	NOUN	NNS	Number=Ptan	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dissolve** | present | It | the coffee grounds |  |  |  |  | vn break-45.1 «NP V NP»: agent=Agent grounds=Patient |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
It lets the liquid through and holds back the grounds

```conllu
# sent_id = question:world:19-mixtures-and-separating:t9:o2:1
# text = It lets the liquid through and holds back the grounds
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	lets	let	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	liquid	liquid	NOUN	NN	Number=Sing	2	obj	_	_
5	through	through	ADV	RB	_	2	compound:prt	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	holds	hold	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
8	back	back	ADV	RB	_	7	advmod	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	grounds	grounds	NOUN	NNS	Number=Ptan	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **let through** | present | It | the liquid |  |  |  |  | vn give-13.1-1 «NP V NP»: agent=Agent liquid=Theme |
| 2 | **hold back** | present |  | the grounds |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent grounds=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
It makes the coffee cold

```conllu
# sent_id = question:world:19-mixtures-and-separating:t9:o3:1
# text = It makes the coffee cold
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	coffee	coffee	NOUN	NN	Number=Sing	2	obj	_	_
5	cold	cold	ADJ	JJ	Degree=Pos	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | It | the coffee |  |  |  | cold *property* | vn build-26.1-1 «NP.material V NP»: agent=Material coffee=Product |

### Option 4 {#o4}

<!-- .ven lang=en -->
It takes out all the coffee taste and leaves only water

```conllu
# sent_id = question:world:19-mixtures-and-separating:t9:o4:1
# text = It takes out all the coffee taste and leaves only water
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	takes	take	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	out	out	ADP	RP	_	2	compound:prt	_	_
4	all	all	DET	PDT	PronType=Tot	7	det:predet	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	coffee	coffee	NOUN	NN	Number=Sing	7	compound	_	_
7	taste	taste	NOUN	NN	Number=Sing	2	obj	_	_
8	and	and	CCONJ	CC	_	9	cc	_	_
9	leaves	leave	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
10	only	only	ADV	RB	_	11	advmod	_	_
11	water	water	NOUN	NN	Number=Sing	9	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **take out** | present | It | all coffee taste |  |  |  |  | vn remove-10.1 «NP V NP»: agent=Agent taste=Theme |
| 2 | **leave** | present |  | water |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent water=Theme |

<!-- div src -->

**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.

<!-- /div -->

<!-- pn -->
- ← previous: [Mixtures and how to separate them, test 8](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/t8/)
- next →: [Mixtures and how to separate them, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/t10/)
- ↑ back to [Mixtures and how to separate them](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/)