---
title: Identify the principal reason for which nocturnal exhibits are illum… — The nocturnal house: night animals by… · tree and pragmatics
description: Identify the principal reason for which nocturnal exhibits are illuminated with dim red light. Exam question 1 of lesson 95 «The nocturnal house: night animals by red light» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mo
---

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# Exam question 1 · The nocturnal house: night animals by red light

<!-- .ven lang=en -->
Identify the principal reason for which nocturnal exhibits are illuminated with dim red light.

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 1 · wrong ✗ · **Who acts:** you · **What happens:** identify, illuminate · **To what, where:** principal reason, nocturnal exhibits

<!-- .vabout -->
This is exam question 1 of lesson 95 «The nocturnal house: night animals by red light» 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/95-the-nocturnal-house-night-animals-by-red-light/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:95-the-nocturnal-house-night-animals-by-red-light:e1:1
# text = Identify the principal reason for which nocturnal exhibits are illuminated with dim red light.
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	10	obl	_	_
7	nocturnal	nocturnal	ADJ	JJ	Degree=Pos	8	amod	_	_
8	exhibits	exhibit	NOUN	NNS	Number=Plur	10	nsubj	_	_
9	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	aux:pass	_	_
10	illuminated	illuminate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl:relcl	_	_
11	with	with	ADP	IN	_	14	case	_	_
12	dim	dim	ADJ	JJ	Degree=Pos	14	amod	_	_
13	red	red	ADJ	JJ	Degree=Pos	14	amod	_	_
14	light	light	NOUN	NN	Number=Sing	10	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 | **illuminate** | present · passive |  | nocturnal exhibits |  |  |  | for the principal reason; with dim red light | vn illustrate-25.3 «NP V NP PP.theme»: subject=Destination with light=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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Numerous nocturnal species perceive red light poorly

```conllu
# sent_id = question:biology:95-the-nocturnal-house-night-animals-by-red-light:e1:o1:1
# text = Numerous nocturnal species perceive red light poorly
1	Numerous	numerous	ADJ	JJ	Degree=Pos	3	amod	_	_
2	nocturnal	nocturnal	ADJ	JJ	Degree=Pos	3	amod	_	_
3	species	species	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	perceive	perceive	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	red	red	ADJ	JJ	Degree=Pos	6	amod	_	_
6	light	light	NOUN	NN	Number=Sing	4	obj	_	_
7	poorly	poorly	ADV	RB	_	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **perceive** | present | Numerous nocturnal species | red light |  |  |  | poorly *property* | vn see-30.1-1 «NP V S»: agent=Experiencer light=Stimulus |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
Red light induces sleep in the animals

```conllu
# sent_id = question:biology:95-the-nocturnal-house-night-animals-by-red-light:e1:o2:1
# text = Red light induces sleep in the animals
1	Red	red	ADJ	JJ	Degree=Pos	2	amod	_	_
2	light	light	NOUN	NN	Number=Sing	3	nsubj	_	_
3	induces	induce	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	sleep	sleep	NOUN	NN	Number=Sing	3	obj	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	animals	animal	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **induce** | present | Red light | sleep |  |  |  | in the animals | vn compel-59.1-1 «NP V NP»: agent=Agent sleep=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Red light repels insects from the enclosure and its visitors

```conllu
# sent_id = question:biology:95-the-nocturnal-house-night-animals-by-red-light:e1:o3:1
# text = Red light repels insects from the enclosure and its visitors
1	Red	red	ADJ	JJ	Degree=Pos	2	amod	_	_
2	light	light	NOUN	NN	Number=Sing	3	nsubj	_	_
3	repels	repel	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	insects	insect	NOUN	NNS	Number=Plur	3	obj	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	enclosure	enclosure	NOUN	NN	Number=Sing	3	obl	_	_
8	and	and	CCONJ	CC	_	10	cc	_	_
9	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	visitors	visitor	NOUN	NNS	Number=Plur	7	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **repel** | present | Red light | insects |  | the enclosure and light's visitors |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus insect=Experiencer |

### Option 4 {#o4}

<!-- .ven lang=en -->
Red light raises the temperature of the room

```conllu
# sent_id = question:biology:95-the-nocturnal-house-night-animals-by-red-light:e1:o4:1
# text = Red light raises the temperature of the room
1	Red	red	ADJ	JJ	Degree=Pos	2	amod	_	_
2	light	light	NOUN	NN	Number=Sing	3	nsubj	_	_
3	raises	raise	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	temperature	temperature	NOUN	NN	Number=Sing	3	obj	_	_
6	of	of	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	room	room	NOUN	NN	Number=Sing	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **raise** | present | Red light | the temperature of the room |  |  |  |  | vn put\_direction-9.4 «NP V NP»: agent=Agent temperature=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.

<!-- /div -->

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