---
title: Two tanks: one animal has a broad round snout and no lower teeth sho… — Crocodiles and alligators · tree and pragmatics
description: Two tanks: one animal has a broad round snout and no lower teeth showing. Which is it? Test 4 of lesson 29 «Crocodiles and alligators» 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.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/t4/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/questions/biology/) / [Crocodiles and alligators](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/) / t4

# Test 4 · Crocodiles and alligators

<!-- .ven lang=en -->
Two tanks: one animal has a broad round snout and no lower teeth showing. Which is it?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** Two tanks, lower teeth · **What happens:** have, show, be · **To what, where:** broad round snout, animal

<!-- .vabout -->
This is test 4 of lesson 29 «Crocodiles and alligators» 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/29-crocodiles-and-alligators/#t4).

## The question {#question}

<!-- .note -->
*Sentence 1:* Two tanks: one animal has a broad round snout and no lower teeth showing.

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:t4:1
# text = Two tanks: one animal has a broad round snout and no lower teeth showing.
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	tanks	tank	NOUN	NNS	Number=Plur	6	nsubj	_	SpaceAfter=No
3	:	:	PUNCT	:	_	6	punct	_	_
4	one	one	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	animal	animal	NOUN	NN	Number=Sing	6	nsubj	_	_
6	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
8	broad	broad	ADJ	JJ	Degree=Pos	10	amod	_	_
9	round	round	ADJ	JJ	Degree=Pos	10	amod	_	_
10	snout	snout	NOUN	NN	Number=Sing	6	obj	_	_
11	and	and	CCONJ	CC	_	14	cc	_	_
12	no	no	DET	DT	PronType=Neg	14	det	_	_
13	lower	low	ADJ	JJR	Degree=Cmp	14	amod	_	_
14	teeth	tooth	NOUN	NNS	Number=Plur	10	conj	_	_
15	showing	show	VERB	VBG	VerbForm=Ger	14	acl	_	SpaceAfter=No
16	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | Two tanks | a broad round snout and no lower teeth |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent snout=Patient |
| 2 | **show** | gerund | no lower teeth *not said here* |  |  |  |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V»: 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.

<!-- .note -->
*Sentence 2:* Which is it?

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:t4:2
# text = Which is it?
1	Which	which	PRON	WDT	PronType=Rel	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	0	root	_	SpaceAfter=No
4	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present |  | animal |  |  |  |  | tree rules |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
It could be either

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:t4:o1:1
# text = It could be either
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	could	could	AUX	MD	VerbForm=Fin	3	aux	_	_
3	be	be	VERB	VB	VerbForm=Inf	0	root	_	_
4	either	either	ADV	RB	PronType=Ind	3	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **can** | could | It |  |  |  |  | either *property* | vn exist-47.1 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Neither, it's a lizard

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:t4:o2:1
# text = Neither, it's a lizard
1	Neither	neither	ADV	RB	_	6	advmod	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	SpaceAfter=No
4	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	lizard	lizard	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | it | a lizard |  |  |  | neither *property* | tree rules |

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

<!-- .ven lang=en -->
The alligator

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:t4:o3:1
# text = The alligator
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	alligator	alligator	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
The crocodile

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:t4:o4:1
# text = The crocodile
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	crocodile	crocodile	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

<!-- 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 -->

<!-- pn -->
- ← previous: [Crocodiles and alligators, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/t3/)
- next →: [Crocodiles and alligators, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/t5/)
- ↑ back to [Crocodiles and alligators](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/)