---
title: What is the air pocket at the wide end of an egg for? — Birds: feathers, wings, eggs and flight · tree and pragmatics
description: What is the air pocket at the wide end of an egg for? Test 8 of lesson 33 «Birds: feathers, wings, eggs and flight» 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 right.
---

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# Test 8 · Birds: feathers, wings, eggs and flight

<!-- .ven lang=en -->
What is the air pocket at the wide end of an egg for?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **What happens:** be · **To what, where:** air pocket, wide end

<!-- .vabout -->
This is test 8 of lesson 33 «Birds: feathers, wings, eggs and flight» of the biology course of Mova's primary school. 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/33-birds-feathers-wings-eggs-and-flight/#t8).

## The question {#question}

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t8:1
# text = What is the air pocket at the wide end of an egg for?
1	What	what	PRON	WP	PronType=Int	5	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	air	air	NOUN	NN	Number=Sing	5	compound	_	_
5	pocket	pocket	NOUN	NN	Number=Sing	0	root	_	_
6	at	at	ADP	IN	_	9	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	wide	wide	ADJ	JJ	Degree=Pos	9	amod	_	_
9	end	end	NOUN	NN	Number=Sing	5	nmod	_	_
10	of	of	ADP	IN	_	12	case	_	_
11	an	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	egg	egg	NOUN	NN	Number=Sing	9	nmod	_	_
13	for	for	ADP	IN	_	12	case	_	SpaceAfter=No
14	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present |  | the air pocket |  |  | at the wide end of a egg |  | 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 -->
Storing the chick's food and water for later, until it is ready to hatch

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t8:o1:1
# text = Storing the chick's food and water for later, until it is ready to hatch
1	Storing	store	VERB	VBG	VerbForm=Ger	14	csubj	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	chick	chick	NOUN	NN	Number=Sing	5	nmod:poss	_	SpaceAfter=No
4	's	's	PART	POS	_	3	case	_	_
5	food	food	NOUN	NN	Number=Sing	1	obj	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	water	water	NOUN	NN	Number=Sing	5	conj	_	_
8	for	for	ADP	IN	_	9	case	_	_
9	later	late	ADV	RBR	Degree=Cmp	1	obl	_	SpaceAfter=No
10	,	,	PUNCT	,	_	14	punct	_	_
11	until	until	SCONJ	IN	_	14	mark	_	_
12	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	nsubj	_	_
13	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	cop	_	_
14	ready	ready	ADJ	JJ	Degree=Pos	0	root	_	_
15	to	to	PART	TO	_	16	mark	_	_
16	hatch	hatch	VERB	VB	VerbForm=Inf	14	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **store** | gerund |  | the chick's food and water |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent food=Theme |
| 2 | **is** | present | it |  |  |  |  | ready *property* | tree rules |
| 3 | **hatch** | to-infinitive |  |  |  |  |  |  | vn grow-26.2.1 «NP.patient V PP.product»: agent=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
Nothing, it is just empty

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t8:o2:1
# text = Nothing, it is just empty
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	6	nsubj	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	just	just	ADV	RB	_	6	advmod	_	_
6	empty	empty	ADJ	JJ	Degree=Pos	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Nothing |  |  |  |  | empty *property* | tree rules |

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

<!-- .ven lang=en -->
The chick's first breath before it breaks the shell

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t8:o3:1
# text = The chick's first breath before it breaks the shell
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	chick	chick	NOUN	NN	Number=Sing	5	nmod:poss	_	SpaceAfter=No
3	's	's	PART	POS	_	2	case	_	_
4	first	first	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	5	amod	_	_
5	breath	breath	NOUN	NN	Number=Sing	0	root	_	_
6	before	before	SCONJ	IN	_	8	mark	_	_
7	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	8	nsubj	_	_
8	breaks	break	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	advcl	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	shell	shell	NOUN	NN	Number=Sing	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **break** | present | breath | the shell |  |  |  |  | vn hurt-40.8.3-1-1 «NP V NP»: agent=Experiencer shell=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
Keeping the egg from sinking in the nest

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t8:o4:1
# text = Keeping the egg from sinking in the nest
1	Keeping	keep	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	egg	egg	NOUN	NN	Number=Sing	1	obj	_	_
4	from	from	SCONJ	IN	_	5	mark	_	_
5	sinking	sink	VERB	VBG	VerbForm=Ger	1	advcl	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	nest	nest	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | gerund |  | the egg |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent egg=Theme |
| 2 | **sink** | gerund |  |  |  | the nest |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

<!-- 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: [Birds: feathers, wings, eggs and flight, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/biology/33-birds-feathers-wings-eggs-and-flight/t7/)
- next →: [Birds: feathers, wings, eggs and flight, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/biology/33-birds-feathers-wings-eggs-and-flight/t9/)
- ↑ back to [Birds: feathers, wings, eggs and flight](https://md.mova.elamur.ai/free/en/corpora/questions/biology/33-birds-feathers-wings-eggs-and-flight/)