---
title: Ella wants to show her class the salt hidden in salty water, safely.… — Olympiad: kitchen chemistry puzzles ★★★ · tree and pragmatics
description: Ella wants to show her class the salt hidden in salty water, safely. Which plan works? Test 10 · ★★★ of lesson 36 «Olympiad: kitchen chemistry puzzles ★★★» 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 
---

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# Test 10 · ★★★ · Olympiad: kitchen chemistry puzzles ★★★

<!-- .ven lang=en -->
Ella wants to show her class the salt hidden in salty water, safely. Which plan works?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 2 · wrong ✗ · **Who acts:** Ella, plan · **What happens:** want, show, hide, work · **To what, where:** class, salt, salty water

<!-- .vabout -->
This is test 10 · ★★★ of lesson 36 «Olympiad: kitchen chemistry puzzles ★★★» 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/36-olympiad-kitchen-chemistry-puzzles/#t10).

## The question {#question}

<!-- .note -->
*Sentence 1:* Ella wants to show her class the salt hidden in salty water, safely.

```conllu
# sent_id = question:chemistry:36-olympiad-kitchen-chemistry-puzzles:t10:1
# text = Ella wants to show her class the salt hidden in salty water, safely.
1	Ella	Ella	PROPN	NNP	Number=Sing	2	nsubj	_	_
2	wants	want	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	to	to	PART	TO	_	4	mark	_	_
4	show	show	VERB	VB	VerbForm=Inf	2	xcomp	_	_
5	her	her	PRON	PRP$	Case=Gen|Gender=Fem|Number=Sing|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	class	class	NOUN	NN	Number=Sing	4	obj	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	salt	salt	NOUN	NN	Number=Sing	4	obj	_	_
9	hidden	hide	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	acl	_	_
10	in	in	ADP	IN	_	12	case	_	_
11	salty	salty	ADJ	JJ	Degree=Pos	12	amod	_	_
12	water	water	NOUN	NN	Number=Sing	9	obl	_	SpaceAfter=No
13	,	,	PUNCT	,	_	14	punct	_	_
14	safely	safely	ADV	RB	_	4	advmod	_	SpaceAfter=No
15	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **want** | present | Ella |  |  |  |  |  | vn want-32.1-1-1 «NP V NP S\_INF»: agent=Pivot clause=Theme |
| 2 | **show** *not said to happen* | to-infinitive | Ella *not said here* | Ella's class |  |  |  | safely *property* | vn transfer\_mesg-37.1.1-1-1 «NP V NP-Dative NP»: agent=Agent class=Recipient salt=Topic |
| 3 | **hide** | participle |  | the salt *not said here* |  | salty water |  |  | vn concealment-16-1 «NP V PP.location»: agent=Agent in water=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.

<!-- .note -->
*Sentence 2:* Which plan works?

```conllu
# sent_id = question:chemistry:36-olympiad-kitchen-chemistry-puzzles:t10:2
# text = Which plan works?
1	Which	which	DET	WDT	PronType=Int	2	det	_	_
2	plan	plan	NOUN	NN	Number=Sing	3	nsubj	_	_
3	works	work	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	SpaceAfter=No
4	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **work** | present | which plan |  |  |  |  |  | vn employment-95.3 «NP V»: agent=Agent |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Freeze it, then pick out the salt cubes

```conllu
# sent_id = question:chemistry:36-olympiad-kitchen-chemistry-puzzles:t10:o1:1
# text = Freeze it, then pick out the salt cubes
1	Freeze	freeze	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	_	SpaceAfter=No
3	,	,	PUNCT	,	_	5	punct	_	_
4	then	then	ADV	RB	PronType=Dem	5	advmod	_	_
5	pick	pick	VERB	VB	Mood=Imp|VerbForm=Fin	1	parataxis	_	_
6	out	out	ADP	RP	_	5	compound:prt	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	salt	salt	NOUN	NN	Number=Sing	9	compound	_	_
9	cubes	cube	NOUN	NNS	Number=Plur	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **freeze** | imperative | you *not said here* | it |  |  |  |  | vn other\_cos-45.4-1 «NP V NP ADJ»: agent=Patient it=Result |
| 2 | **pick out** | infinitive |  | the salt cubes |  |  | then |  | vn chew-39.2 «NP V NP»: agent=Agent cube=Patient |

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

<!-- .ven lang=en -->
Pour it into a wide dish, leave it in the sun for days, then look for crystals

<!-- fold The tree, 17 words -->
```conllu
# sent_id = question:chemistry:36-olympiad-kitchen-chemistry-puzzles:t10:o2:1
# text = Pour it into a wide dish, leave it in the sun for days, then look for crystals
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	into	into	ADP	IN	_	6	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	wide	wide	ADJ	JJ	Degree=Pos	6	amod	_	_
6	dish	dish	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
7	,	,	PUNCT	,	_	8	punct	_	_
8	leave	leave	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
9	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	8	obj	_	_
10	in	in	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	sun	sun	NOUN	NN	Number=Sing	8	obl	_	_
13	for	for	ADP	IN	_	14	case	_	_
14	days	day	NOUN	NNS	Number=Plur	8	obl	_	SpaceAfter=No
15	,	,	PUNCT	,	_	17	punct	_	_
16	then	then	ADV	RB	PronType=Dem	17	advmod	_	_
17	look	look	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
18	for	for	ADP	IN	_	19	case	_	_
19	crystals	crystal	NOUN	NNS	Number=Plur	17	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pour** | imperative | you *not said here* | it |  | a wide dish |  |  | vn pour-9.5 «NP V NP PP.initial\_location PP.destination»: agent=Agent it=Theme into dish=Destination |
| 2 | **leave** | infinitive | you *not said here* | dish |  | the sun | day |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent it=Theme in sun=Location |
| 3 | **look** | infinitive | you *not said here* |  |  |  | then | for crystals | vn rummage-35.5 «NP V PP.location PP.theme»: agent=Agent for crystal=Theme |

### Option 3 · ← Mova's choice {#o3}

<!-- .ven lang=en -->
Filter it, and the salt stays on the paper

```conllu
# sent_id = question:chemistry:36-olympiad-kitchen-chemistry-puzzles:t10:o3:1
# text = Filter it, and the salt stays on the paper
1	Filter	filter	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	_	SpaceAfter=No
3	,	,	PUNCT	,	_	7	punct	_	_
4	and	and	CCONJ	CC	_	7	cc	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	salt	salt	NOUN	NN	Number=Sing	7	nsubj	_	_
7	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	conj	_	_
8	on	on	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	paper	paper	NOUN	NN	Number=Sing	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **filter** | imperative | you *not said here* | it |  |  |  |  | vn wipe\_instr-10.4.2 «NP V NP.initial\_location»: agent=Agent it=Initial\_Location |
| 2 | **stay** | present | the salt |  |  | the paper |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme on paper=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
Stir it hard until the salt sinks back down

```conllu
# sent_id = question:chemistry:36-olympiad-kitchen-chemistry-puzzles:t10:o4:1
# text = Stir it hard until the salt sinks back down
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	hard	hard	ADV	RB	Degree=Pos	1	advmod	_	_
4	until	until	SCONJ	IN	_	7	mark	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	salt	salt	NOUN	NN	Number=Sing	7	nsubj	_	_
7	sinks	sink	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	advcl	_	_
8	back	back	ADV	RB	_	9	advmod	_	_
9	down	down	ADV	RB	_	7	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stir** | imperative | you *not said here* | it |  |  |  | hard *property* | vn amuse-31.1 «NP V NP»: agent=Stimulus it=Experiencer |
| 2 | **sink** | present | the salt |  |  |  |  | down *property* | vn other\_cos-45.4 «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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