---
title: Why does a steering wheel have a large rim instead of a small one? — Simple machines and how they help · tree and pragmatics
description: Why does a steering wheel have a large rim instead of a small one? Test 7 · ★ of lesson 52 «Simple machines and how they help» of the world 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 7 · ★ · Simple machines and how they help

<!-- .ven lang=en -->
Why does a steering wheel have a large rim instead of a small one?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** steering wheel · **What happens:** have · **To what, where:** large rim

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This is test 7 · ★ of lesson 52 «Simple machines and how they help» of the world 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/world/52-simple-machines/#t7).

## The question {#question}

```conllu
# sent_id = question:world:52-simple-machines:t7:1
# text = Why does a steering wheel have a large rim instead of a small one?
1	Why	why	ADV	WRB	PronType=Int	6	advmod	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	aux	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	steering	steering	NOUN	NN	Number=Sing	5	compound	_	_
5	wheel	wheel	NOUN	NN	Number=Sing	6	nsubj	_	_
6	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
8	large	large	ADJ	JJ	Degree=Pos	9	amod	_	_
9	rim	rim	NOUN	NN	Number=Sing	6	obj	_	_
10	instead	instead	ADV	RB	ExtPos=ADP	14	case	_	_
11	of	of	ADP	IN	_	10	fixed	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	small	small	ADJ	JJ	Degree=Pos	14	amod	_	_
14	one	one	NOUN	NN	Number=Sing	6	obl	_	SpaceAfter=No
15	?	?	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present · do-support | a steering wheel | a large rim |  |  |  | instead a small one | vn birth-28.2-1 «NP V NP»: agent=Agent rim=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 {#o1}

<!-- .ven lang=en -->
A big wheel keeps the car on the road

```conllu
# sent_id = question:world:52-simple-machines:t7:o1:1
# text = A big wheel keeps the car on the road
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	big	big	ADJ	JJ	Degree=Pos	3	amod	_	_
3	wheel	wheel	NOUN	NN	Number=Sing	4	nsubj	_	_
4	keeps	keep	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	car	car	NOUN	NN	Number=Sing	4	obj	_	_
7	on	on	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	road	road	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present | a big wheel | the car |  | the road |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent car=Theme on road=Location |

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

<!-- .ven lang=en -->
A big wheel turns the thin shaft with a stronger force

```conllu
# sent_id = question:world:52-simple-machines:t7:o2:1
# text = A big wheel turns the thin shaft with a stronger force
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	big	big	ADJ	JJ	Degree=Pos	3	amod	_	_
3	wheel	wheel	NOUN	NN	Number=Sing	4	nsubj	_	_
4	turns	turn	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	thin	thin	ADJ	JJ	Degree=Pos	7	amod	_	_
7	shaft	shaft	NOUN	NN	Number=Sing	4	obj	_	_
8	with	with	ADP	IN	_	11	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
10	stronger	strong	ADJ	JJR	Degree=Cmp	11	amod	_	_
11	force	force	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn** | present | a big wheel | the thin shaft |  |  |  | with a stronger force | vn roll-51.3.1 «NP V NP.theme»: agent=Agent shaft=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
A big wheel makes the car lighter

```conllu
# sent_id = question:world:52-simple-machines:t7:o3:1
# text = A big wheel makes the car lighter
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	big	big	ADJ	JJ	Degree=Pos	3	amod	_	_
3	wheel	wheel	NOUN	NN	Number=Sing	4	nsubj	_	_
4	makes	make	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	car	car	NOUN	NN	Number=Sing	4	obj	_	_
7	lighter	light	ADJ	JJR	Degree=Cmp	4	xcomp	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
A big wheel makes the car go faster

```conllu
# sent_id = question:world:52-simple-machines:t7:o4:1
# text = A big wheel makes the car go faster
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	big	big	ADJ	JJ	Degree=Pos	3	amod	_	_
3	wheel	wheel	NOUN	NN	Number=Sing	4	nsubj	_	_
4	makes	make	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	car	car	NOUN	NN	Number=Sing	4	obj	_	_
7	go	go	VERB	VB	VerbForm=Inf	4	xcomp	_	_
8	faster	fast	ADV	RBR	Degree=Cmp	7	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | a big wheel | the car |  |  |  |  | tree rules |
| 2 | **go** | infinitive | the car *not said here* |  |  |  |  | fast *property* | vn disappearance-48.2-1 «NP V»: agent=Theme |

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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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