---
title: Identify the principal reason for which an emergency stop button rem… — How a factory works: belts, robots, ch… · tree and pragmatics
description: Identify the principal reason for which an emergency stop button remains depressed after activation. Exam question 2 of lesson 1 «How a factory works: belts, robots, checks and people» of the technology course of Mova's primary school, with the dependency tree and pragmatics of the question and of e
---

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# Exam question 2 · How a factory works: belts, robots, checks and people

<!-- .ven lang=en -->
Identify the principal reason for which an emergency stop button remains depressed after activation.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, stop button · **What happens:** identify, remain · **To what, where:** principal reason

<!-- .vabout -->
This is exam question 2 of lesson 1 «How a factory works: belts, robots, checks and people» of the technology 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/technology/1-how-a-factory-works/#e2).

## The question {#question}

```conllu
# sent_id = question:technology:1-how-a-factory-works:e2:1
# text = Identify the principal reason for which an emergency stop button remains depressed after activation.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	which	which	PRON	WDT	PronType=Rel	11	obl	_	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
8	emergency	emergency	NOUN	NN	Number=Sing	9	compound	_	_
9	stop	stop	NOUN	NN	Number=Sing	10	compound	_	_
10	button	button	NOUN	NN	Number=Sing	11	nsubj	_	_
11	remains	remain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	acl	_	_
12	depressed	depressed	ADJ	JJ	Degree=Pos	11	xcomp	_	_
13	after	after	ADP	IN	_	14	case	_	_
14	activation	activation	NOUN	NN	Number=Sing	11	obl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the principal reason |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent reason=Theme |
| 2 | **remain** | present | a stop button |  |  |  | after activation | for the principal reason; depressed *property* | vn exist-47.1 «NP V»: agent=Theme |

<!-- .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 prevents the machine from restarting until the fault has been inspected

```conllu
# sent_id = question:technology:1-how-a-factory-works:e2:o1:1
# text = It prevents the machine from restarting until the fault has been inspected
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	prevents	prevent	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	machine	machine	NOUN	NN	Number=Sing	2	obj	_	_
5	from	from	SCONJ	IN	_	6	mark	_	_
6	restarting	restart	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	_	_
7	until	until	SCONJ	IN	_	12	mark	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	fault	fault	NOUN	NN	Number=Sing	12	nsubj:pass	_	_
10	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	aux	_	_
11	been	be	AUX	VBN	Tense=Past|VerbForm=Part	12	aux:pass	_	_
12	inspected	inspect	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **prevent** | present | It | the machine |  |  |  |  | vn forbid-64.4-1 «NP V NP»: agent=Causer machine=Theme |
| 2 | **restart** | gerund |  |  |  |  |  |  | tree rules |
| 3 | **inspect** | present · perfect · passive |  | the fault |  |  |  |  | vn assessment-34.1 «NP V NP»: subject=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
It permits the machine to continue at reduced speed

```conllu
# sent_id = question:technology:1-how-a-factory-works:e2:o2:1
# text = It permits the machine to continue at reduced speed
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	permits	permit	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	machine	machine	NOUN	NN	Number=Sing	2	obj	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	continue	continue	VERB	VB	VerbForm=Inf	2	advcl	_	_
7	at	at	ADP	IN	_	9	case	_	_
8	reduced	reduce	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	amod	_	_
9	speed	speed	NOUN	NN	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **permit** | present | It | the machine |  |  |  |  | vn admit-64.3-1 «NP V NP»: agent=Agent machine=Theme |
| 2 | **continue** | to-infinitive |  |  |  | reduced speed |  |  | vn escape-51.1-1 «NP V»: agent=Theme |
| 3 | **reduce** | participle |  |  |  |  |  |  | vn limit-76 «NP V NP»: agent=Causer |

### Option 3 {#o3}

<!-- .ven lang=en -->
It conserves the electricity consumed by the button

```conllu
# sent_id = question:technology:1-how-a-factory-works:e2:o3:1
# text = It conserves the electricity consumed by the button
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	conserves	conserve	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	electricity	electricity	NOUN	NN	Number=Sing	2	obj	_	_
5	consumed	consume	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl	_	_
6	by	by	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	button	button	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **conserve** | present | It | the electricity |  |  |  |  | tree rules |
| 2 | **consume** | participle |  | the electricity *not said here* |  |  |  | by the button | vn consume-66 «NP V NP»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
It indicates that the button has ceased to function

```conllu
# sent_id = question:technology:1-how-a-factory-works:e2:o4:1
# text = It indicates that the button has ceased to function
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	indicates	indicate	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	that	that	SCONJ	IN	_	7	mark	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	button	button	NOUN	NN	Number=Sing	7	nsubj:pass	_	_
6	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	aux	_	_
7	ceased	cease	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	ccomp	_	_
8	to	to	PART	TO	_	9	mark	_	_
9	function	function	NOUN	NN	Number=Sing	7	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **indicate** | present | It |  |  |  |  |  | vn indicate-78-1 «NP V how S»: agent=Pivot clause=Topic |
| 2 | **cease** | present · perfect · passive |  | the button |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: subject=Eventuality |

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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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