---
title: Hand gel left by the birthday candles. What's the problem? — Soap and why washing works · tree and pragmatics
description: Hand gel left by the birthday candles. What's the problem? Test 11 · ★★ of lesson 24 «Soap and why washing works» 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 right.
---

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# Test 11 · ★★ · Soap and why washing works

<!-- .ven lang=en -->
Hand gel left by the birthday candles. What's the problem?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** problem · **What happens:** leave, be · **To what, where:** Hand gel

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This is test 11 · ★★ of lesson 24 «Soap and why washing works» 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/24-soap-and-why-washing-works/#t11).

## The question {#question}

<!-- .note -->
*Sentence 1:* Hand gel left by the birthday candles.

```conllu
# sent_id = question:chemistry:24-soap-and-why-washing-works:t11:1
# text = Hand gel left by the birthday candles.
1	Hand	hand	NOUN	NN	Number=Sing	2	compound	_	_
2	gel	gel	NOUN	NN	Number=Sing	0	root	_	_
3	left	leave	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	by	by	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	birthday	birthday	NOUN	NN	Number=Sing	7	compound	_	_
7	candles	candle	NOUN	NNS	Number=Plur	3	obl	_	SpaceAfter=No
8	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **leave** | participle |  | Hand gel *not said here* |  |  |  | by the birthday candles | vn keep-15.2 «NP V NP PP.location»: agent=Agent by candle=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:* What's the problem?

```conllu
# sent_id = question:chemistry:24-soap-and-why-washing-works:t11:2
# text = What's the problem?
1	What	what	PRON	WP	PronType=Int	0	root	_	SpaceAfter=No
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	problem	problem	NOUN	NN	Number=Sing	1	nsubj	_	SpaceAfter=No
5	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | the problem |  |  |  |  |  | tree rules |

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
It is flammable

```conllu
# sent_id = question:chemistry:24-soap-and-why-washing-works:t11:o1:1
# text = It is flammable
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	flammable	flammable	ADJ	JJ	Degree=Pos	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | It |  |  |  |  | flammable *property* | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
It will melt into soap

```conllu
# sent_id = question:chemistry:24-soap-and-why-washing-works:t11:o2:1
# text = It will melt into soap
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	will	will	AUX	MD	VerbForm=Fin	3	aux	_	_
3	melt	melt	VERB	VB	VerbForm=Inf	0	root	_	_
4	into	into	ADP	IN	_	5	case	_	_
5	soap	soap	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **melt** | future | It |  |  | soap |  |  | vn knead-26.5 «NP.material V PP.product»: agent=Material into soap=Product |

### Option 3 {#o3}

<!-- .ven lang=en -->
It turns the cake sour

```conllu
# sent_id = question:chemistry:24-soap-and-why-washing-works:t11:o3:1
# text = It turns the cake sour
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	turns	turn	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	cake	cake	NOUN	NN	Number=Sing	5	compound	_	_
5	sour	sour	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn** | present | It | the cake sour |  |  |  |  | vn roll-51.3.1 «NP V ADJ.result»: agent=Theme sour=Result |

### Option 4 {#o4}

<!-- .ven lang=en -->
Nothing, it's only water

```conllu
# sent_id = question:chemistry:24-soap-and-why-washing-works:t11:o4:1
# text = Nothing, it's only water
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	SpaceAfter=No
4	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	only	only	ADV	RB	_	6	advmod	_	_
6	water	water	NOUN	NN	Number=Sing	1	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | it | water |  |  |  |  | tree rules |

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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: [Soap and why washing works, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t10/)
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