---
title: Why is sharing a toothbrush a bad idea? — Saving energy, pets at home and the ba… · tree and pragmatics
description: Why is sharing a toothbrush a bad idea? Test 5 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 was right.
---

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# Test 5 · Saving energy, pets at home and the bathroom

<!-- .ven lang=en -->
Why is sharing a toothbrush a bad idea?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **What happens:** share · **To what, where:** toothbrush

<!-- .vabout -->
This is test 5 of lesson 118 «Saving energy, pets at home and the bathroom» 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/118-energy-pets-and-bathroom/#t5).

## The question {#question}

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:t5:1
# text = Why is sharing a toothbrush a bad idea?
1	Why	why	ADV	WRB	PronType=Int	3	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux	_	_
3	sharing	share	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	toothbrush	toothbrush	NOUN	NN	Number=Sing	3	obj	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	bad	bad	ADJ	JJ	Degree=Pos	8	amod	_	_
8	idea	idea	NOUN	NN	Number=Sing	3	obj	_	SpaceAfter=No
9	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **share** | present · progressive |  | a toothbrush |  |  |  |  | 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 {#o1}

<!-- .ven lang=en -->
Toothpaste stops working

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:t5:o1:1
# text = Toothpaste stops working
1	Toothpaste	toothpaste	NOUN	NN	Number=Sing	2	nsubj	_	_
2	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	working	work	VERB	VBG	VerbForm=Ger	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop** | present | Toothpaste |  |  |  |  |  | vn stop-55.4-1-1 «NP V S\_ING»: agent=Affector clause=Eventuality |
| 2 | **work** | gerund | Toothpaste *not said here* |  |  |  |  |  | vn employment-95.3 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
Toothbrushes change colour

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:t5:o2:1
# text = Toothbrushes change colour
1	Toothbrushes	toothbrush	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	change	change	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	colour	colour	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | present | Toothbrushes | colour |  |  |  |  | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent colour=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
The bristles wear out twice as fast when two people use them

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:t5:o3:1
# text = The bristles wear out twice as fast when two people use them
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	bristles	bristle	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	twice	twice	ADV	RB	NumForm=Word|NumType=Mult	7	advmod	_	_
6	as	as	ADV	RB	_	7	advmod	_	_
7	fast	fast	ADV	RB	Degree=Pos	3	advmod	_	_
8	when	when	SCONJ	WRB	_	11	mark	_	_
9	two	two	NUM	CD	NumForm=Word|NumType=Card	10	nummod	_	_
10	people	people	NOUN	NNS	Number=Plur	11	nsubj	_	_
11	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	advcl	_	_
12	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	11	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **wear out** | present | the bristles |  |  |  |  | fast *property* | vn wipe\_manner-10.4.1-1 «NP V PP-Conative»: agent=Agent |
| 2 | **use** | present | two people | bristles *= bristle* |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent they=Patient |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Germs pass from one mouth to the other

```conllu
# sent_id = question:everyday:118-energy-pets-and-bathroom:t5:o4:1
# text = Germs pass from one mouth to the other
1	Germs	germ	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	pass	pass	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	from	from	ADP	IN	_	5	case	_	_
4	one	one	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	mouth	mouth	NOUN	NN	Number=Sing	2	obl	_	_
6	to	to	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	other	other	ADJ	JJ	Degree=Pos	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pass** | present | Germs |  |  | one mouth |  | to the other | vn escape-51.1-1-3 «NP V PP.initial\_location PP.destination»: agent=Theme from mouth=Initial\_Location to other=Destination |

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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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