---
title: Ascertain the principal reason for which the orange coat of the tige… — The tiger: the biggest and strongest c… · tree and pragmatics
description: Ascertain the principal reason for which the orange coat of the tiger affords concealment from deer. Exam question 3 of lesson 19 «The tiger: the biggest and strongest cat, a solitary and cunning hunter» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the q
---

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# Exam question 3 · The tiger: the biggest and strongest cat, a solitary and c…

<!-- .ven lang=en -->
Ascertain the principal reason for which the orange coat of the tiger affords concealment from deer.

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** you, orange coat · **What happens:** ascertain, afford · **To what, where:** principal reason, concealment, deer

<!-- .vabout -->
This is exam question 3 of lesson 19 «The tiger: the biggest and strongest cat, a solitary and cunning hunter» 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/19-the-tiger/#e3).

## The question {#question}

```conllu
# sent_id = question:biology:19-the-tiger:e3:1
# text = Ascertain the principal reason for which the orange coat of the tiger affords concealment from deer.
1	Ascertain	ascertain	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	13	obl	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	orange	orange	ADJ	JJ	Degree=Pos	9	amod	_	_
9	coat	coat	NOUN	NN	Number=Sing	13	nsubj	_	_
10	of	of	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	tiger	tiger	NOUN	NN	Number=Sing	9	nmod	_	_
13	affords	afford	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	parataxis	_	_
14	concealment	concealment	NOUN	NN	Number=Sing	13	obj	_	_
15	from	from	ADP	IN	_	16	case	_	_
16	deer	deer	NOUN	NN	Number=Sing	13	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the principal reason |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent reason=Topic |
| 2 | **afford** | present | the orange coat of the tiger | concealment |  | deer |  | for the principal reason | tree rules |

<!-- .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 -->
Deer are incapable of perceiving movement

```conllu
# sent_id = question:biology:19-the-tiger:e3:o1:1
# text = Deer are incapable of perceiving movement
1	Deer	deer	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	incapable	incapable	ADJ	JJ	Degree=Pos	0	root	_	_
4	of	of	SCONJ	IN	_	5	mark	_	_
5	perceiving	perceive	VERB	VBG	Tense=Pres|VerbForm=Part	3	advcl	_	_
6	movement	movement	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Deer |  |  |  |  | incapable *property* | tree rules |
| 2 | **perceive** | gerund | Deer *not said here* | movement |  |  |  |  | vn see-30.1-1 «NP V S»: agent=Experiencer movement=Stimulus |

### Option 2 {#o2}

<!-- .ven lang=en -->
The coat of the tiger alters its colour in accordance with the season

```conllu
# sent_id = question:biology:19-the-tiger:e3:o2:1
# text = The coat of the tiger alters its colour in accordance with the season
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	coat	coat	NOUN	NN	Number=Sing	6	nsubj	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	tiger	tiger	NOUN	NN	Number=Sing	2	nmod	_	_
6	alters	alter	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	colour	colour	NOUN	NN	Number=Sing	6	obj	_	_
9	in	in	ADP	IN	_	10	case	_	_
10	accordance	accordance	NOUN	NN	Number=Sing	6	obl	_	_
11	with	with	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	season	season	NOUN	NN	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **alter** | present | the coat of the tiger | coat's colour |  | accordance | season |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent colour=Patient |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Deer are unable to perceive red and orange well, the tiger appearing greenish

```conllu
# sent_id = question:biology:19-the-tiger:e3:o3:1
# text = Deer are unable to perceive red and orange well, the tiger appearing greenish
1	Deer	deer	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	unable	unable	ADJ	JJ	Degree=Pos	0	root	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	perceive	perceive	VERB	VB	VerbForm=Inf	3	xcomp	_	_
6	red	red	ADJ	JJ	Degree=Pos	5	obj	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	orange	orange	ADJ	JJ	Degree=Pos	6	conj	_	_
9	well	well	ADV	RB	Degree=Pos	5	advmod	_	SpaceAfter=No
10	,	,	PUNCT	,	_	12	punct	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	tiger	tiger	NOUN	NN	Number=Sing	3	parataxis	_	_
13	appearing	appear	VERB	VBG	VerbForm=Ger	12	acl	_	_
14	greenish	greenish	ADJ	JJ	Degree=Pos	13	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Deer |  |  |  |  | unable *property* | tree rules |
| 2 | **perceive** | to-infinitive | Deer *not said here* | red |  |  |  | well *property* | vn see-30.1-1 «NP V S»: agent=Experiencer red=Stimulus |
| 3 | **appear** | gerund | the tiger *not said here* |  |  |  |  | greenish *property* | vn appear-48.1.1 «NP V»: agent=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
Deer perceive exclusively in black and white at all times

```conllu
# sent_id = question:biology:19-the-tiger:e3:o4:1
# text = Deer perceive exclusively in black and white at all times
1	Deer	deer	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	perceive	perceive	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	exclusively	exclusively	ADV	RB	_	2	advmod	_	_
4	in	in	ADP	IN	_	10	case	_	_
5	black	black	ADJ	JJ	Degree=Pos	10	amod	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	white	white	ADJ	JJ	Degree=Pos	5	conj	_	_
8	at	at	ADP	IN	_	9	case	_	_
9	all	all	DET	DT	PronType=Tot	7	obl	_	_
10	times	time	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **perceive** | present | Deer |  |  |  | time | exclusively *property* | vn see-30.1-1 «NP V S\_ING»: agent=Experiencer |

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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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