---
title: Which of the following statements most accurately characterises the… — Petrol stations, pools and things that… · tree and pragmatics
description: Which of the following statements most accurately characterises the hazard of combining bleach with other cleaning products? Exam question 3 of lesson 23 «Petrol stations, pools and things that go bang» of the myths course of Mova's primary school, with the dependency tree and pragmatics of the ques
---

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# Exam question 3 · Petrol stations, pools and things that go bang

<!-- .ven lang=en -->
Which of the following statements most accurately characterises the hazard of combining bleach with other cleaning products?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** hazard · **What happens:** follow, characteris, combine · **To what, where:** hazard, bleach

<!-- .vabout -->
This is exam question 3 of lesson 23 «Petrol stations, pools and things that go bang» of the myths 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/myths/23-petrol-stations-pools-and-things-that-go-bang/#e3).

## The question {#question}

```conllu
# sent_id = question:myths:23-petrol-stations-pools-and-things-that-go-bang:e3:1
# text = Which of the following statements most accurately characterises the hazard of combining bleach with other cleaning products?
1	Which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
2	of	of	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	following	follow	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	statements	statement	NOUN	NNS	Number=Plur	8	obl	_	_
6	most	most	ADV	RBS	Degree=Sup	7	advmod	_	_
7	accurately	accurately	ADV	RB	_	8	advmod	_	_
8	characterises	characteris	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	hazard	hazard	NOUN	NN	Number=Sing	8	obj	_	_
11	of	of	SCONJ	IN	_	12	mark	_	_
12	combining	combine	VERB	VBG	VerbForm=Ger	10	acl	_	_
13	bleach	bleach	NOUN	NN	Number=Sing	12	obj	_	_
14	with	with	ADP	IN	_	17	case	_	_
15	other	other	ADJ	JJ	Degree=Pos	17	amod	_	_
16	cleaning	cleaning	NOUN	NN	Number=Sing	17	compound	_	_
17	products	product	NOUN	NNS	Number=Plur	12	obl	_	SpaceAfter=No
18	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **characteris** | present |  | the hazard |  |  |  | of the following statements; accurately *property* | tree rules |
| 3 | **combine** | gerund | the hazard *not said here* | bleach |  |  |  | with other cleaning products | vn mix-22.1-1-1 «NP V NP PP.co-patient»: agent=Agent bleach=Patient with product=Co-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.

## The options {#options}

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

<!-- .ven lang=en -->
Certain combinations liberate poisonous gases

```conllu
# sent_id = question:myths:23-petrol-stations-pools-and-things-that-go-bang:e3:o1:1
# text = Certain combinations liberate poisonous gases
1	Certain	certain	ADJ	JJ	Degree=Pos	2	amod	_	_
2	combinations	combination	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	liberate	liberate	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	poisonous	poisonous	ADJ	JJ	Degree=Pos	5	amod	_	_
5	gases	gas	NOUN	NNS	Number=Plur	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **liberate** | present | Certain combinations | poisonous gases |  |  |  |  | vn steal-10.5 «NP V NP»: agent=Agent gas=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
The combination merely diminishes the bleach's colour

```conllu
# sent_id = question:myths:23-petrol-stations-pools-and-things-that-go-bang:e3:o2:1
# text = The combination merely diminishes the bleach's colour
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	combination	combination	NOUN	NN	Number=Sing	4	nsubj	_	_
3	merely	merely	ADV	RB	_	4	advmod	_	_
4	diminishes	diminish	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	bleach	bleach	NOUN	NN	Number=Sing	8	nmod:poss	_	SpaceAfter=No
7	's	's	PART	POS	_	6	case	_	_
8	colour	colour	NOUN	NN	Number=Sing	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **diminish** | present | the combination | the bleach's colour |  |  |  | merely *property* | vn caused\_calibratable\_cos-45.6.2-1 «NP V NP.patient»: agent=Causer colour=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
All such combinations are entirely harmless

```conllu
# sent_id = question:myths:23-petrol-stations-pools-and-things-that-go-bang:e3:o3:1
# text = All such combinations are entirely harmless
1	All	all	DET	DT	PronType=Tot	3	det	_	_
2	such	such	ADJ	JJ	Degree=Pos	3	amod	_	_
3	combinations	combination	NOUN	NNS	Number=Plur	6	nsubj	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	entirely	entirely	ADV	RB	_	6	advmod	_	_
6	harmless	harmless	ADJ	JJ	Degree=Pos	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The combination solely impairs the cleaning effect

```conllu
# sent_id = question:myths:23-petrol-stations-pools-and-things-that-go-bang:e3:o4:1
# text = The combination solely impairs the cleaning effect
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	combination	combination	NOUN	NN	Number=Sing	4	nsubj	_	_
3	solely	solely	ADV	RB	_	4	advmod	_	_
4	impairs	impair	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	cleaning	cleaning	NOUN	NN	Number=Sing	7	compound	_	_
7	effect	effect	NOUN	NN	Number=Sing	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **impair** | present | the combination | the cleaning effect |  |  |  | solely *property* | vn amuse-31.1 «NP V NP»: agent=Stimulus effect=Experiencer |

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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.

<!-- /div -->

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- ↑ back to [Petrol stations, pools and things that go bang](https://md.mova.elamur.ai/free/en/corpora/questions/myths/23-petrol-stations-pools-and-things-that-go-bang/)