---
title: Which of these is safe? — Cleaning chemicals and safety at home · tree and pragmatics
description: Which of these is safe? Test 8 of lesson 25 «Cleaning chemicals and safety at home» 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 wrong.
---

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# Test 8 · Cleaning chemicals and safety at home

<!-- .ven lang=en -->
Which of these is safe?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** be

<!-- .vabout -->
This is test 8 of lesson 25 «Cleaning chemicals and safety at home» 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/25-cleaning-chemicals-safety/#t8).

## The question {#question}

```conllu
# sent_id = question:chemistry:25-cleaning-chemicals-safety:t8:1
# text = Which of these is safe?
1	Which	which	PRON	WDT	PronType=Rel	5	nsubj	_	_
2	of	of	ADP	IN	_	3	case	_	_
3	these	this	PRON	DT	Number=Plur|PronType=Dem	1	nmod	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	safe	safe	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
6	?	?	PUNCT	.	_	5	punct	_	_
```

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

<!-- .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 -->
Putting bleach in a cup to carry it

```conllu
# sent_id = question:chemistry:25-cleaning-chemicals-safety:t8:o1:1
# text = Putting bleach in a cup to carry it
1	Putting	put	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	bleach	bleach	NOUN	NN	Number=Sing	1	obj	_	_
3	in	in	ADP	IN	_	5	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	cup	cup	NOUN	NN	Number=Sing	1	obl	_	_
6	to	to	PART	TO	_	7	mark	_	_
7	carry	carry	VERB	VB	VerbForm=Inf	1	advcl	_	_
8	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **put** | gerund |  | bleach |  | a cup |  |  | vn put-9.1-2 «NP V NP PP.destination»: agent=Agent bleach=Theme in cup=Destination |
| 2 | **carry** | to-infinitive |  | bleach |  |  |  |  | vn carry-11.4 «NP V NP»: agent=Agent it=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Mixing two cleaners to make a stronger, better one

```conllu
# sent_id = question:chemistry:25-cleaning-chemicals-safety:t8:o2:1
# text = Mixing two cleaners to make a stronger, better one
1	Mixing	mix	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	two	two	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
3	cleaners	cleaner	NOUN	NNS	Number=Plur	1	obj	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	make	make	VERB	VB	VerbForm=Inf	1	advcl	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
7	stronger	strong	ADJ	JJR	Degree=Cmp	10	amod	_	SpaceAfter=No
8	,	,	PUNCT	,	_	7	punct	_	_
9	better	good	ADJ	JJR	Degree=Cmp	10	amod	_	_
10	one	one	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **mix** | gerund |  | two cleaners |  |  |  |  | vn mix-22.1-1-1 «NP V NP»: agent=Agent cleaner=Patient |
| 2 | **make** | to-infinitive |  | a stronger better one |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset one=Product |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Keeping cleaners in their own labelled bottles

```conllu
# sent_id = question:chemistry:25-cleaning-chemicals-safety:t8:o3:1
# text = Keeping cleaners in their own labelled bottles
1	Keeping	keep	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	cleaners	cleaner	NOUN	NNS	Number=Plur	1	obj	_	_
3	in	in	ADP	IN	_	7	case	_	_
4	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
5	own	own	ADJ	JJ	Degree=Pos	7	amod	_	_
6	labelled	labell	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	amod	_	_
7	bottles	bottle	NOUN	NNS	Number=Plur	1	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | gerund |  | cleaners |  | cleaners's own labelled bottles |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent cleaner=Theme in bottle=Location |
| 2 | **labell** | participle |  |  |  |  |  |  | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Storing tablets in a sweet jar

```conllu
# sent_id = question:chemistry:25-cleaning-chemicals-safety:t8:o4:1
# text = Storing tablets in a sweet jar
1	Storing	store	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	tablets	tablet	NOUN	NNS	Number=Plur	1	obj	_	_
3	in	in	ADP	IN	_	6	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	sweet	sweet	ADJ	JJ	Degree=Pos	6	amod	_	_
6	jar	jar	NOUN	NN	Number=Sing	1	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **store** | gerund |  | tablets |  | a sweet jar |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent tablet=Theme in jar=Location |

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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: [Cleaning chemicals and safety at home, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/25-cleaning-chemicals-safety/t7/)
- next →: [Cleaning chemicals and safety at home, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/25-cleaning-chemicals-safety/t9/)
- ↑ back to [Cleaning chemicals and safety at home](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/25-cleaning-chemicals-safety/)