---
title: State the reason for which reptiles kept in captivity require ultrav… — Behind the scenes: a day with the keep… · tree and pragmatics
description: State the reason for which reptiles kept in captivity require ultraviolet lamps. Exam question 4 of lesson 109 «Behind the scenes: a day with the keepers» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wro
---

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# Exam question 4 · Behind the scenes: a day with the keepers

<!-- .ven lang=en -->
State the reason for which reptiles kept in captivity require ultraviolet lamps.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** reptiles · **What happens:** keep, require · **To what, where:** reptiles, captivity, ultraviolet lamps

<!-- .vabout -->
This is exam question 4 of lesson 109 «Behind the scenes: a day with the keepers» of the biology 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/biology/109-behind-the-scenes-a-day-with-the-keepers/#e4).

## The question {#question}

```conllu
# sent_id = question:biology:109-behind-the-scenes-a-day-with-the-keepers:e4:1
# text = State the reason for which reptiles kept in captivity require ultraviolet lamps.
1	State	state	NOUN	NN	Number=Sing	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	reason	reason	NOUN	NN	Number=Sing	1	appos	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	10	obl	_	_
6	reptiles	reptile	NOUN	NNS	Number=Plur	10	nsubj	_	_
7	kept	keep	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	acl	_	_
8	in	in	ADP	IN	_	9	case	_	_
9	captivity	captivity	NOUN	NN	Number=Sing	7	obl	_	_
10	require	require	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
11	ultraviolet	ultraviolet	ADJ	JJ	Degree=Pos	12	amod	_	_
12	lamps	lamp	NOUN	NNS	Number=Plur	10	obj	_	SpaceAfter=No
13	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | participle |  | reptiles *not said here* |  | captivity |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent in captivity=Location |
| 2 | **require** | present | reptiles | ultraviolet lamps |  |  |  | for the reason | vn require-103-1 «NP V NP»: agent=Theme lamp=Precondition |

<!-- .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 {#o1}

<!-- .ven lang=en -->
To render their skin visible in darkness

```conllu
# sent_id = question:biology:109-behind-the-scenes-a-day-with-the-keepers:e4:o1:1
# text = To render their skin visible in darkness
1	To	to	PART	TO	_	2	mark	_	_
2	render	render	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	skin	skin	NOUN	NN	Number=Sing	2	obj	_	_
5	visible	visible	ADJ	JJ	Degree=Pos	2	xcomp	_	_
6	in	in	ADP	IN	_	7	case	_	_
7	darkness	darkness	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **render** | to-infinitive |  | their skin |  |  |  | visible *property* | vn give-13.1 «NP V NP»: agent=Agent skin=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
To maintain the temperature of their water

```conllu
# sent_id = question:biology:109-behind-the-scenes-a-day-with-the-keepers:e4:o2:1
# text = To maintain the temperature of their water
1	To	to	PART	TO	_	2	mark	_	_
2	maintain	maintain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	temperature	temperature	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	water	water	NOUN	NN	Number=Sing	4	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **maintain** | to-infinitive |  | the temperature of their water |  |  |  |  | vn declare-29.4-1 «NP V NP ADJ»: agent=Agent temperature=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
To prevent the shedding of the skin

```conllu
# sent_id = question:biology:109-behind-the-scenes-a-day-with-the-keepers:e4:o3:1
# text = To prevent the shedding of the skin
1	To	to	PART	TO	_	2	mark	_	_
2	prevent	prevent	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	shedding	shedding	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	skin	skin	NOUN	NN	Number=Sing	4	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **prevent** | to-infinitive |  | the shedding of the skin |  |  |  |  | vn forbid-64.4-1 «NP V NP»: agent=Causer shedding=Theme |
| 2 | **shed** |  | the skin |  |  |  |  |  | nom shedding «process intransitive»: of=agent |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
To enable the synthesis of vitamin D for the maintenance of sound bones

```conllu
# sent_id = question:biology:109-behind-the-scenes-a-day-with-the-keepers:e4:o4:1
# text = To enable the synthesis of vitamin D for the maintenance of sound bones
1	To	to	PART	TO	_	2	mark	_	_
2	enable	enable	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	synthesis	synthesis	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	vitamin	vitamin	NOUN	NN	Number=Sing	7	compound	_	_
7	D	D	NOUN	NN	Number=Sing	4	nmod	_	_
8	for	for	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	maintenance	maintenance	NOUN	NN	Number=Sing	2	obl	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	sound	sound	NOUN	NN	Number=Sing	13	compound	_	_
13	bones	bone	NOUN	NNS	Number=Plur	10	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **enable** | to-infinitive |  | the synthesis of vitamin D |  |  |  | for the maintenance of sound bones | tree rules |
| 2 | **maintain** |  |  | sound bones |  |  |  |  | nom maintenance «act transitive»: of=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.

<!-- /div -->

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- ← previous: [Behind the scenes: a day with the keep…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/109-behind-the-scenes-a-day-with-the-keepers/e3/)
- next →: [Behind the scenes: the zoo vet and the…, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/110-behind-the-scenes-the-zoo-vet-and-the-animal-hospital/t1/)
- ↑ back to [Behind the scenes: a day with the keepers](https://md.mova.elamur.ai/free/en/corpora/questions/biology/109-behind-the-scenes-a-day-with-the-keepers/)