---
title: Ascertain the reason for which each person ought to use solely their… — Saving energy, pets at home and the ba… · tree and pragmatics
description: Ascertain the reason for which each person ought to use solely their own toothbrush. Exam question 4 of lesson 118 «Saving energy, pets at home and the bathroom» 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
---

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# Exam question 4 · Saving energy, pets at home and the bathroom

<!-- .ven lang=en -->
Ascertain the reason for which each person ought to use solely their own toothbrush.

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** you, person · **What happens:** ascertain, use · **To what, where:** reason, own toothbrush

<!-- .vabout -->
This is exam question 4 of lesson 118 «Saving energy, pets at home and the bathroom» of the everyday 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/everyday/118-energy-pets-and-bathroom/#e4).

## The question {#question}

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:e4:1
# text = Ascertain the reason for which each person ought to use solely their own toothbrush.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	10	obl	_	_
6	each	each	DET	DT	PronType=Tot	7	det	_	_
7	person	person	NOUN	NN	Number=Sing	10	nsubj	_	_
8	ought	ought	AUX	MD	VerbForm=Fin	10	aux	_	_
9	to	to	PART	TO	_	10	mark	_	_
10	use	use	VERB	VB	VerbForm=Inf	3	acl:relcl	_	_
11	solely	solely	ADV	RB	_	10	advmod	_	_
12	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	14	nmod:poss	_	_
13	own	own	ADJ	JJ	Degree=Pos	14	amod	_	_
14	toothbrush	toothbrush	NOUN	NN	Number=Sing	10	obj	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the reason |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent reason=Topic |
| 2 | **use** | ought | each person | their own toothbrush |  |  |  | for the reason; solely *property* | vn use-105.1 «NP V NP PP.predicate»: agent=Agent toothbrush=Theme for which=Eventuality |

<!-- .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 {#o1}

<!-- .ven lang=en -->
Sharing makes the toothpaste weaker

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:e4:o1:1
# text = Sharing makes the toothpaste weaker
1	Sharing	share	VERB	VBG	VerbForm=Ger	2	nsubj	_	_
2	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	toothpaste	toothpaste	NOUN	NN	Number=Sing	2	obj	_	_
5	weaker	weak	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **share** | gerund |  |  |  |  |  |  | tree rules |
| 2 | **make** | present |  | the toothpaste |  |  |  | weak *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset toothpaste=Product |

### Option 2 · ← Mova's choice · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Sharing a toothbrush spreads germs

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:e4:o2:1
# text = Sharing a toothbrush spreads germs
1	Sharing	share	VERB	VBG	VerbForm=Ger	4	csubj	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
3	toothbrush	toothbrush	NOUN	NN	Number=Sing	1	obj	_	_
4	spreads	spread	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	germs	germ	NOUN	NNS	Number=Plur	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **share** | gerund |  | a toothbrush |  |  |  |  | tree rules |
| 2 | **spread** | present | Sharing | germs |  |  |  |  | vn appear-48.1.1 «PP.location V NP»: agent=Location germ=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
Shared toothbrushes wear out faster

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:e4:o3:1
# text = Shared toothbrushes wear out faster
1	Shared	share	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	amod	_	_
2	toothbrushes	toothbrush	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	wear	wear	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	out	out	ADP	RP	_	3	compound:prt	_	_
5	faster	fast	ADV	RBR	Degree=Cmp	3	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **share** | participle |  |  |  |  |  |  | tree rules |
| 2 | **wear out** | present | Shared toothbrushes |  |  |  |  | fast *property* | vn wipe\_manner-10.4.1-1 «NP V PP-Conative»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
Toothbrushes only fit one mouth shape

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:e4:o4:1
# text = Toothbrushes only fit one mouth shape
1	Toothbrushes	toothbrush	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	only	only	ADV	RB	_	3	advmod	_	_
3	fit	fit	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	one	one	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
5	mouth	mouth	NOUN	NN	Number=Sing	6	compound	_	_
6	shape	shape	NOUN	NN	Number=Sing	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fit** | present | Toothbrushes | one mouth shape |  |  |  |  | vn adjust-26.9 «NP V NP»: agent=Agent shape=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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