---
title: If birds had heavy jaws full of teeth like crocodiles, what problem… — Birds: feathers, wings, eggs and flight · tree and pragmatics
description: If birds had heavy jaws full of teeth like crocodiles, what problem would they have? Test 5 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 wrong.
---

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# Test 5 · Birds: feathers, wings, eggs and flight

<!-- .ven lang=en -->
If birds had heavy jaws full of teeth like crocodiles, what problem would they have?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 4 · wrong ✗ · **Who acts:** birds, problem · **What happens:** have · **To what, where:** heavy jaws

<!-- .vabout -->
This is test 5 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/#t5).

## The question {#question}

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t5:1
# text = If birds had heavy jaws full of teeth like crocodiles, what problem would they have?
1	If	if	SCONJ	IN	_	3	mark	_	_
2	birds	bird	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	had	have	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	heavy	heavy	ADJ	JJ	Degree=Pos	5	amod	_	_
5	jaws	jaw	NOUN	NNS	Number=Plur	3	obj	_	_
6	full	full	ADJ	JJ	Degree=Pos	5	amod	_	_
7	of	of	ADP	IN	_	8	case	_	_
8	teeth	tooth	NOUN	NNS	Number=Plur	6	obl	_	_
9	like	like	ADP	IN	_	10	case	_	_
10	crocodiles	crocodile	NOUN	NNS	Number=Plur	8	nmod	_	SpaceAfter=No
11	,	,	PUNCT	,	_	16	punct	_	_
12	what	what	PRON	WP	PronType=Int	16	obj	_	_
13	problem	problem	NOUN	NN	Number=Sing	16	nsubj	_	_
14	would	would	AUX	MD	VerbForm=Fin	16	aux	_	_
15	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	16	nsubj	_	_
16	have	have	VERB	VB	VerbForm=Inf	5	conj	_	SpaceAfter=No
17	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | past | birds | heavy jaws |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent jaw=Patient |
| 2 | **have** | would | problem | heavy jaws |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent what=Patient |

<!-- .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 -->
They would have to live underwater

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t5:o1:1
# text = They would have to live underwater
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	have	have	VERB	VB	VerbForm=Inf	0	root	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	live	live	VERB	VB	VerbForm=Inf	3	xcomp	_	_
6	underwater	underwater	ADV	RB	_	5	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | would | They |  |  |  |  |  | tree rules |
| 2 | **live** | to-infinitive | They *not said here* |  |  |  |  | underwater *property* | vn exist-47.1-1 «NP V»: agent=Theme |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
They could not sing

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t5:o2:1
# text = They could not sing
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	4	nsubj	_	_
2	could	could	AUX	MD	VerbForm=Fin	4	aux	_	_
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	sing	sing	VERB	VB	VerbForm=Inf	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **sing** *speech: express* | could | They |  |  |  |  |  | vn sound\_emission-43.2 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
Nothing, teeth weigh nothing at all compared with the rest of the head

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t5:o3:1
# text = Nothing, teeth weigh nothing at all compared with the rest of the head
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	3	compound	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	teeth	tooth	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	weigh	weigh	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	4	obj	_	_
6	at	at	ADP	IN	_	7	case	_	_
7	all	all	DET	DT	PronType=Tot	5	nmod	_	_
8	compared	compare	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl	_	_
9	with	with	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	rest	rest	NOUN	NN	Number=Sing	8	obl	_	_
12	of	of	ADP	IN	_	14	case	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	head	head	NOUN	NN	Number=Sing	11	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **weigh** | present | Nothing teeth | nothing |  | all |  |  | vn register-54.1-2-1 «NP V NP PP.value»: agent=Agent nothing=Theme at all=Value |
| 2 | **compare** | participle |  |  |  |  |  | with the rest of the head | vn amalgamate-22.2-2 «NP V PP»: agent=Patient with rest=Co-Patient |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Their heads would be heavy, making flight harder

```conllu
# sent_id = question:biology:33-birds-feathers-wings-eggs-and-flight:t5:o4:1
# text = Their heads would be heavy, making flight harder
1	Their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	heads	head	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	5	aux	_	_
4	be	be	AUX	VB	VerbForm=Inf	5	cop	_	_
5	heavy	heavy	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	making	make	VERB	VBG	Tense=Pres|VerbForm=Part	5	advcl	_	_
8	flight	flight	NOUN	NN	Number=Sing	7	obj	_	_
9	harder	hard	ADJ	JJR	Degree=Cmp	7	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | would | Their heads |  |  |  |  | heavy *property* | tree rules |
| 2 | **make** | gerund | Their heads *not said here* | flight |  |  |  | hard *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset flight=Product |

<!-- 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 4](https://md.mova.elamur.ai/free/en/corpora/questions/biology/33-birds-feathers-wings-eggs-and-flight/t4/)
- next →: [Birds: feathers, wings, eggs and flight, test 6](https://md.mova.elamur.ai/free/en/corpora/questions/biology/33-birds-feathers-wings-eggs-and-flight/t6/)
- ↑ 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/)