---
title: Identify the function served by the forked tongue of the snake. — Kung Fu Panda: real mantises, snakes a… · tree and pragmatics
description: Identify the function served by the forked tongue of the snake. Exam question 2 of lesson 137 «Kung Fu Panda: real mantises, snakes and monkeys» 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 wrong.
---

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# Exam question 2 · Kung Fu Panda: real mantises, snakes and monkeys

<!-- .ven lang=en -->
Identify the function served by the forked tongue of the snake.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** identify, serve, fork · **To what, where:** function

<!-- .vabout -->
This is exam question 2 of lesson 137 «Kung Fu Panda: real mantises, snakes and monkeys» 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/137-kung-fu-panda-real-mantises-snakes-and-monkeys/#e2).

## The question {#question}

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e2:1
# text = Identify the function served by the forked tongue of the snake.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	function	function	NOUN	NN	Number=Sing	1	obj	_	_
4	served	serve	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl	_	_
5	by	by	ADP	IN	_	8	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	forked	fork	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	amod	_	_
8	tongue	tongue	NOUN	NN	Number=Sing	4	obl	_	_
9	of	of	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	snake	snake	NOUN	NN	Number=Sing	8	nmod	_	SpaceAfter=No
12	.	.	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 function |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent function=Theme |
| 2 | **serve** | participle |  | the function *not said here* |  |  |  | by the forked tongue of the snake | vn masquerade-29.6-2 «NP V PP.attribute»: agent=Agent |
| 3 | **fork** | participle |  |  |  |  |  |  | vn pocket-9.10 «NP V NP.theme»: agent=Agent |

<!-- .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 -->
It is employed principally for the intimidation of enemies, which retreat upon seeing it

<!-- fold The tree, 14 words -->
```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e2:o1:1
# text = It is employed principally for the intimidation of enemies, which retreat upon seeing it
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	employed	employ	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	principally	principally	ADV	RB	_	3	advmod	_	_
5	for	for	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	intimidation	intimidation	NOUN	NN	Number=Sing	3	obl	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	enemies	enemy	NOUN	NNS	Number=Plur	7	nmod	_	SpaceAfter=No
10	,	,	PUNCT	,	_	12	punct	_	_
11	which	which	PRON	WDT	PronType=Rel	12	nsubj	_	_
12	retreat	retreat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	9	acl:relcl	_	_
13	upon	upon	SCONJ	IN	_	14	mark	_	_
14	seeing	see	VERB	VBG	Tense=Pres|VerbForm=Part	12	advcl	_	_
15	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **employ** | present · passive |  | It |  |  |  | for the intimidation of enemies; principally *property* | vn use-105.1 «NP V NP PP.predicate»: subject=Theme for intimidation=Eventuality |
| 2 | **retreat** | present | enemies |  |  |  |  |  | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |
| 3 | **see** | gerund | enemies *not said here* | intimidation |  |  |  |  | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer it=Stimulus |
| 4 | **intimidate** |  |  | enemies |  |  |  |  | nom intimidation «act transitive»: of=patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
It serves to drink water from the air

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e2:o2:1
# text = It serves to drink water from the air
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	serves	serve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	to	to	PART	TO	_	4	mark	_	_
4	drink	drink	VERB	VB	VerbForm=Inf	2	xcomp	_	_
5	water	water	NOUN	NN	Number=Sing	4	obj	_	_
6	from	from	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	air	air	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **serve** | present | It |  |  |  |  |  | tree rules |
| 2 | **drink** | to-infinitive |  | water |  | the air |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent water=Patient |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
It conveys particles of scent to an organ in the roof of the mouth and indicates their direction

<!-- fold The tree, 18 words -->
```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e2:o3:1
# text = It conveys particles of scent to an organ in the roof of the mouth and indicates their direction
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	conveys	convey	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	particles	particle	NOUN	NNS	Number=Plur	2	obj	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	scent	scent	NOUN	NN	Number=Sing	3	nmod	_	_
6	to	to	ADP	IN	_	8	case	_	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	organ	organ	NOUN	NN	Number=Sing	2	obl	_	_
9	in	in	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	roof	roof	NOUN	NN	Number=Sing	8	nmod	_	_
12	of	of	ADP	IN	_	14	case	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	mouth	mouth	NOUN	NN	Number=Sing	11	nmod	_	_
15	and	and	CCONJ	CC	_	16	cc	_	_
16	indicates	indicate	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
17	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	18	nmod:poss	_	_
18	direction	direction	NOUN	NN	Number=Sing	16	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **convey** | present | It | particles of scent | a organ in the roof of the mouth |  |  |  | vn say-37.7-1-1 «NP V NP PP.recipient»: agent=Agent particle=Topic to organ=Recipient |
| 2 | **indicate** | present |  | particles's direction |  |  |  |  | vn indicate-78-1 «NP V NP»: agent=Pivot direction=Topic |

### Option 4 {#o4}

<!-- .ven lang=en -->
It serves to capture flying insects in the manner of a frog

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e2:o4:1
# text = It serves to capture flying insects in the manner of a frog
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	serves	serve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	to	to	PART	TO	_	4	mark	_	_
4	capture	capture	VERB	VB	VerbForm=Inf	2	xcomp	_	_
5	flying	fly	VERB	VBG	VerbForm=Ger	6	amod	_	_
6	insects	insect	NOUN	NNS	Number=Plur	4	obj	_	_
7	in	in	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	manner	manner	NOUN	NN	Number=Sing	4	obl	_	_
10	of	of	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	frog	frog	NOUN	NN	Number=Sing	9	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **serve** | present | It |  |  |  |  |  | tree rules |
| 2 | **capture** | to-infinitive |  | flying insects |  | the manner of a frog |  |  | vn steal-10.5-1 «NP V NP»: agent=Agent insect=Theme |
| 3 | **fly** | gerund |  |  |  |  |  |  | vn spatial\_configuration-47.6-1 «NP V»: agent=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.

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