---
title: It is given that the steam from boiling salt water is condensed upon… — Separating mixtures · tree and pragmatics
description: It is given that the steam from boiling salt water is condensed upon a cold surface. Ascertain the nature of the liquid obtained. Exam question 4 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 op
---

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# Exam question 4 · Separating mixtures

<!-- .ven lang=en -->
It is given that the steam from boiling salt water is condensed upon a cold surface. Ascertain the nature of the liquid obtained.

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** steam, you, liquid · **What happens:** give, boil, condense, ascertain, obtain · **To what, where:** It, salt water, steam, nature

<!-- .vabout -->
This is exam question 4 of lesson 8 «Separating mixtures» of the chemistry 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/chemistry/8-separating-mixtures/#e4).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that the steam from boiling salt water is condensed upon a cold surface.

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e4:1
# text = It is given that the steam from boiling salt water is condensed upon a cold surface.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	that	that	SCONJ	IN	_	12	mark	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	steam	steam	NOUN	NN	Number=Sing	12	nsubj:pass	_	_
7	from	from	ADP	IN	_	8	case	_	_
8	boiling	boil	VERB	VBG	VerbForm=Ger	6	acl	_	_
9	salt	salt	NOUN	NN	Number=Sing	10	compound	_	_
10	water	water	NOUN	NN	Number=Sing	8	obj	_	_
11	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	aux:pass	_	_
12	condensed	condense	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	_	_
13	upon	upon	ADP	IN	_	16	case	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
15	cold	cold	ADJ	JJ	Degree=Pos	16	amod	_	_
16	surface	surface	NOUN	NN	Number=Sing	12	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | present · passive |  | It |  |  |  |  | vn give-13.1-1 «NP V NP»: subject=Theme |
| 2 | **boil** | gerund | the steam *not said here* | salt water |  |  |  |  | vn cooking-45.3 «NP V NP.patient»: agent=Agent water=Patient |
| 3 | **condense** | present · passive |  | the steam |  |  |  | upon a cold surface | vn other\_cos-45.4 «NP V NP.patient»: subject=Patient |

<!-- .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.

<!-- .note -->
*Sentence 2:* Ascertain the nature of the liquid obtained.

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e4:2
# text = Ascertain the nature of the liquid obtained.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	nature	nature	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	SCONJ	IN	_	7	mark	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	liquid	liquid	NOUN	NN	Number=Sing	7	nsubj	_	_
7	obtained	obtain	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	acl	_	SpaceAfter=No
8	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the nature |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent nature=Topic |
| 2 | **obtain** | past | the liquid | the nature *not said here* |  |  |  |  | vn obtain-13.5.2-1 «NP.asset V NP»: agent=Asset nature=Theme |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Salt in a liquid, molten state

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e4:o1:1
# text = Salt in a liquid, molten state
1	Salt	salt	NOUN	NN	Number=Sing	0	root	_	_
2	in	in	ADP	IN	_	4	case	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	liquid	liquid	NOUN	NN	Number=Sing	1	nmod	_	SpaceAfter=No
5	,	,	PUNCT	,	_	7	punct	_	_
6	molten	molten	ADJ	JJ	Degree=Pos	7	amod	_	_
7	state	state	NOUN	NN	Number=Sing	1	conj	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
Water of greater salinity than the original

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e4:o2:1
# text = Water of greater salinity than the original
1	Water	water	NOUN	NN	Number=Sing	0	root	_	_
2	of	of	ADP	IN	_	4	case	_	_
3	greater	great	ADJ	JJR	Degree=Cmp	4	amod	_	_
4	salinity	salinity	NOUN	NN	Number=Sing	1	nmod	_	_
5	than	than	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	original	original	ADJ	JJ	Degree=Pos	4	nmod	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
A mixture identical to the original

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e4:o3:1
# text = A mixture identical to the original
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	mixture	mixture	NOUN	NN	Number=Sing	3	nsubj	_	_
3	identical	identical	ADJ	JJ	Degree=Pos	0	root	_	_
4	to	to	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	original	original	NOUN	NN	Number=Sing	3	obl	_	_
```

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

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Pure water, devoid of salt

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e4:o4:1
# text = Pure water, devoid of salt
1	Pure	pure	ADJ	JJ	Degree=Pos	2	amod	_	_
2	water	water	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	4	punct	_	_
4	devoid	devoid	ADJ	JJ	Degree=Pos	2	amod	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	salt	salt	NOUN	NN	Number=Sing	4	obl	_	_
```

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

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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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