---
title: Why is chlorine put in pool water, even though it can sting eyes? — Cricket, rugby, basketball, hockey and… · tree and pragmatics
description: Why is chlorine put in pool water, even though it can sting eyes? Test 8 · ★ of lesson 249 «Cricket, rugby, basketball, hockey and swimming» of the everyday 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 8 · ★ · Cricket, rugby, basketball, hockey and swimming

<!-- .ven lang=en -->
Why is chlorine put in pool water, even though it can sting eyes?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** water · **What happens:** put, sting · **To what, where:** chlorine, pool water, eyes

<!-- .vabout -->
This is test 8 · ★ of lesson 249 «Cricket, rugby, basketball, hockey and swimming» of the everyday 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/everyday/249-cricket-rugby-basketball-and-hockey/#t8).

## The question {#question}

```conllu
# sent_id = question:everyday:249-cricket-rugby-basketball-and-hockey:t8:1
# text = Why is chlorine put in pool water, even though it can sting eyes?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
3	chlorine	chlorine	NOUN	NN	Number=Sing	4	obl:unmarked	_	_
4	put	put	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	pool	pool	NOUN	NN	Number=Sing	7	compound	_	_
7	water	water	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	13	punct	_	_
9	even	even	ADV	RB	_	13	advmod	_	_
10	though	though	SCONJ	IN	_	13	mark	_	_
11	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	_
12	can	can	AUX	MD	VerbForm=Fin	13	aux	_	_
13	sting	sting	VERB	VB	VerbForm=Inf	4	conj	_	_
14	eyes	eye	NOUN	NNS	Number=Plur	13	obj	_	SpaceAfter=No
15	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **put** | present · passive |  | chlorine |  | pool water |  |  | vn put-9.1-2 «NP V NP PP.destination»: in water=Destination |
| 2 | **sting** | can | water | eyes |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus eye=Experiencer |

<!-- .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 -->
To kill germs, and goggles stop the stinging

```conllu
# sent_id = question:everyday:249-cricket-rugby-basketball-and-hockey:t8:o1:1
# text = To kill germs, and goggles stop the stinging
1	To	to	PART	TO	_	2	mark	_	_
2	kill	kill	VERB	VB	VerbForm=Inf	7	advcl	_	_
3	germs	germ	NOUN	NNS	Number=Plur	2	obj	_	SpaceAfter=No
4	,	,	PUNCT	,	_	7	punct	_	_
5	and	and	CCONJ	CC	_	7	cc	_	_
6	goggles	goggle	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	stop	stop	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	stinging	stinging	NOUN	NN	Number=Sing	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **kill** | to-infinitive | goggles *not said here* | germs |  |  |  |  | vn remove-10.1 «NP V NP»: agent=Agent germ=Theme |
| 2 | **stop** | present | goggles | the stinging |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality stinging=Eventuality |

### Option 2 {#o2}

<!-- .ven lang=en -->
To make swimmers float higher in the water

```conllu
# sent_id = question:everyday:249-cricket-rugby-basketball-and-hockey:t8:o2:1
# text = To make swimmers float higher in the water
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	swimmers	swimmer	NOUN	NNS	Number=Plur	2	obj	_	_
4	float	float	VERB	VB	VerbForm=Inf	2	xcomp	_	_
5	higher	high	ADV	RBR	Degree=Cmp	4	advmod	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	water	water	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | swimmers |  |  |  |  | tree rules |
| 2 | **float** | infinitive | swimmers *not said here* |  |  | the water |  | high *property* | vn run-51.3.2-2 «NP V PP.location»: agent=Theme in water=Trajectory |

### Option 3 {#o3}

<!-- .ven lang=en -->
To make the water a nice bright blue

```conllu
# sent_id = question:everyday:249-cricket-rugby-basketball-and-hockey:t8:o3:1
# text = To make the water a nice bright blue
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	water	water	NOUN	NN	Number=Sing	2	obj	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	nice	nice	ADJ	JJ	Degree=Pos	2	xcomp	_	_
7	bright	bright	ADJ	JJ	Degree=Pos	8	amod	_	_
8	blue	blue	ADJ	JJ	Degree=Pos	6	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | the water |  |  |  | nice *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset water=Product |

### Option 4 {#o4}

<!-- .ven lang=en -->
To warm the water

```conllu
# sent_id = question:everyday:249-cricket-rugby-basketball-and-hockey:t8:o4:1
# text = To warm the water
1	To	to	PART	TO	_	2	mark	_	_
2	warm	warm	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	water	water	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **warm** | to-infinitive |  | the water |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent water=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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- next →: [Cricket, rugby, basketball, hockey and…, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/249-cricket-rugby-basketball-and-hockey/t9/)
- ↑ back to [Cricket, rugby, basketball, hockey and swimming](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/249-cricket-rugby-basketball-and-hockey/)