---
title: Identify the principal function of the false eye spot situated near… — Coral reef partners and tricksters: cl… · tree and pragmatics
description: Identify the principal function of the false eye spot situated near the tail of certain reef fish. Exam question 2 of lesson 173 «Coral reef partners and tricksters: clownfish, cleaners, mimics and puffers» of the biology course of Mova's primary school, with the dependency tree and pragmatics of th
---

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# Exam question 2 · Coral reef partners and tricksters: clownfish, cleaners, m…

<!-- .ven lang=en -->
Identify the principal function of the false eye spot situated near the tail of certain reef fish.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you · **What happens:** identify, situate · **To what, where:** principal function, false eye spot, tail

<!-- .vabout -->
This is exam question 2 of lesson 173 «Coral reef partners and tricksters: clownfish, cleaners, mimics and puffers» 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/173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers/#e2).

## The question {#question}

```conllu
# sent_id = question:biology:173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers:e2:1
# text = Identify the principal function of the false eye spot situated near the tail of certain reef fish.
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	function	function	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	9	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
7	false	false	ADJ	JJ	Degree=Pos	9	amod	_	_
8	eye	eye	NOUN	NN	Number=Sing	9	compound	_	_
9	spot	spot	NOUN	NN	Number=Sing	4	nmod	_	_
10	situated	situate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	acl	_	_
11	near	near	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	tail	tail	NOUN	NN	Number=Sing	10	obl	_	_
14	of	of	ADP	IN	_	17	case	_	_
15	certain	certain	ADJ	JJ	Degree=Pos	17	amod	_	_
16	reef	reef	NOUN	NN	Number=Sing	17	compound	_	_
17	fish	fish	NOUN	NNS	Number=Plur	13	nmod	_	SpaceAfter=No
18	.	.	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 function of the false eye spot |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent function=Theme |
| 2 | **situate** | participle |  | the false eye spot *not said here* |  | the tail of certain reef fish |  |  | vn put-9.1 «NP V NP PP.destination»: agent=Agent near tail=Destination |

<!-- .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 -->
To mislead a predator as to the position of the head

```conllu
# sent_id = question:biology:173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers:e2:o1:1
# text = To mislead a predator as to the position of the head
1	To	to	PART	TO	_	2	mark	_	_
2	mislead	mislead	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	predator	predator	NOUN	NN	Number=Sing	2	obj	_	_
5	as	as	ADP	IN	ExtPos=ADP	8	case	_	_
6	to	to	ADP	IN	_	5	fixed	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	position	position	NOUN	NN	Number=Sing	2	obl	_	_
9	of	of	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	head	head	NOUN	NN	Number=Sing	8	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **mislead** | to-infinitive |  | a predator |  |  |  | as the position of the head | vn trick-59.2 «NP V NP»: agent=Agent predator=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
To enable the fish to perceive objects behind it

```conllu
# sent_id = question:biology:173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers:e2:o2:1
# text = To enable the fish to perceive objects behind it
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	fish	fish	NOUN	NN	Number=Sing	2	obj	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	perceive	perceive	VERB	VB	VerbForm=Inf	2	xcomp	_	_
7	objects	object	NOUN	NNS	Number=Plur	6	obj	_	_
8	behind	behind	ADP	IN	_	9	case	_	_
9	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **enable** | to-infinitive |  | the fish |  |  |  |  | tree rules |
| 2 | **perceive** | to-infinitive | the fish *not said here* | objects |  |  |  | behind fish | vn see-30.1-1 «NP V S»: agent=Experiencer object=Stimulus |

### Option 3 {#o3}

<!-- .ven lang=en -->
To absorb sunlight for the purpose of warmth

```conllu
# sent_id = question:biology:173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers:e2:o3:1
# text = To absorb sunlight for the purpose of warmth
1	To	to	PART	TO	_	2	mark	_	_
2	absorb	absorb	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	sunlight	sunlight	NOUN	NN	Number=Sing	2	obj	_	_
4	for	for	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	purpose	purpose	NOUN	NN	Number=Sing	2	obl	_	_
7	of	of	ADP	IN	_	8	case	_	_
8	warmth	warmth	NOUN	NN	Number=Sing	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **absorb** | to-infinitive |  | sunlight |  |  |  | for the purpose of warmth | vn absorb-39.8 «NP V NP»: agent=Goal sunlight=Theme |
| 2 | **purpose** |  | warmth |  |  |  |  |  | nom purpose «cognition intransitive»: of=agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
To attract the attention of divers

```conllu
# sent_id = question:biology:173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers:e2:o4:1
# text = To attract the attention of divers
1	To	to	PART	TO	_	2	mark	_	_
2	attract	attract	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	attention	attention	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	divers	diver	NOUN	NNS	Number=Plur	4	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **attract** | to-infinitive |  | the attention of divers |  |  |  |  | vn lure-59.3 «NP V NP»: agent=Agent attention=Patient |
| 2 | **attend** |  | divers |  |  |  |  |  | nom attention «cognition intransitive»: of=agent |

<!-- div src -->

**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: [Coral reef partners and tricksters: cl…, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers/e1/)
- next →: [Coral reef partners and tricksters: cl…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers/e3/)
- ↑ back to [Coral reef partners and tricksters: clownfish, cleaners, mimics and puffers](https://md.mova.elamur.ai/free/en/corpora/questions/biology/173-coral-reef-partners-and-tricksters-clownfish-cleaners-mimics-and-puffers/)