---
title: Why does a car seat belt keep you safe when the car stops suddenly? — Reasoning about the body moving in the… · tree and pragmatics
description: Why does a car seat belt keep you safe when the car stops suddenly? Test 8 · ★★★ of lesson 10 «Reasoning about the body moving in the world» 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 · ★★★ · Reasoning about the body moving in the world

<!-- .ven lang=en -->
Why does a car seat belt keep you safe when the car stops suddenly?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** car seat belt, car · **What happens:** keep, stop · **To what, where:** you

<!-- .vabout -->
This is test 8 · ★★★ of lesson 10 «Reasoning about the body moving in the world» 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/10-reasoning-about-the-moving-body/#t8).

## The question {#question}

```conllu
# sent_id = question:everyday:10-reasoning-about-the-moving-body:t8:1
# text = Why does a car seat belt keep you safe when the car stops suddenly?
1	Why	why	ADV	WRB	PronType=Int	7	advmod	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	aux	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
4	car	car	NOUN	NN	Number=Sing	6	compound	_	_
5	seat	seat	NOUN	NN	Number=Sing	6	compound	_	_
6	belt	belt	NOUN	NN	Number=Sing	7	nsubj	_	_
7	keep	keep	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	13	parataxis	_	_
8	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	7	obj	_	_
9	safe	safe	ADJ	JJ	Degree=Pos	7	xcomp	_	_
10	when	when	ADV	WRB	PronType=Int	13	advmod	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	car	car	NOUN	NN	Number=Sing	13	nsubj	_	_
13	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
14	suddenly	suddenly	ADV	RB	_	13	advmod	_	SpaceAfter=No
15	?	?	PUNCT	.	_	13	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present · do-support | a car seat belt | you |  |  |  | safe *property* | vn keep-15.2 «NP V NP»: agent=Agent you=Theme |
| 2 | **stop** | present | the car |  |  |  |  | suddenly *property* | vn stop-55.4-1-1 «NP.eventuality V»: agent=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 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
It holds you so your body does not fly forward

```conllu
# sent_id = question:everyday:10-reasoning-about-the-moving-body:t8:o1:1
# text = It holds you so your body does not fly forward
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	holds	hold	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	2	obj	_	_
4	so	so	ADV	RB	_	9	advmod	_	_
5	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	body	body	NOUN	NN	Number=Sing	9	nsubj	_	_
7	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux	_	_
8	not	not	PART	RB	Polarity=Neg	9	advmod	_	_
9	fly	fly	VERB	VB	VerbForm=Inf	2	advcl	_	_
10	forward	forward	ADV	RB	_	9	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hold** | present | It | you |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent you=Theme |
| 2 | **not** **fly** | present · do-support | your body |  |  |  |  | forward *property* | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
It makes the car brake faster

```conllu
# sent_id = question:everyday:10-reasoning-about-the-moving-body:t8:o2:1
# text = It makes the car brake faster
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	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	car	car	NOUN	NN	Number=Sing	2	obj	_	_
5	brake	break	VERB	VB	VerbForm=Inf	2	xcomp	_	_
6	faster	fast	ADV	RBR	Degree=Cmp	5	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | It | the car |  |  |  |  | tree rules |
| 2 | **break** | infinitive | the car *not said here* |  |  |  |  | fast *property* | vn hurt-40.8.3-1-1 «NP V»: agent=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
It keeps you warm in the seat

```conllu
# sent_id = question:everyday:10-reasoning-about-the-moving-body:t8:o3:1
# text = It keeps you warm in the seat
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	2	obj	_	_
4	warm	warm	ADJ	JJ	Degree=Pos	2	xcomp	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	seat	seat	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present | It | you |  | the seat |  | warm *property* | vn keep-15.2 «NP V NP PP.location»: agent=Agent you=Theme in seat=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
It stops gravity pulling you down

```conllu
# sent_id = question:everyday:10-reasoning-about-the-moving-body:t8:o4:1
# text = It stops gravity pulling you down
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	gravity	gravity	NOUN	NN	Number=Sing	2	obj	_	_
4	pulling	pull	VERB	VBG	VerbForm=Ger	3	acl	_	_
5	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	4	obj	_	_
6	down	down	ADP	RP	_	2	compound:prt	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop down** | present | It | gravity |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality gravity=Eventuality |
| 2 | **pull** | gerund | gravity *not said here* | you |  |  |  |  | vn push-12-1 «NP V NP ADJP-Result»: agent=Agent you=Result |

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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: [Reasoning about the body moving in the…, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/10-reasoning-about-the-moving-body/t7/)
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