---
title: Which pair are both vertebrates? — Groups of animals and how to tell them… · tree and pragmatics
description: Which pair are both vertebrates? Test 8 of lesson 24 «Groups of animals and how to tell them apart» of the world 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 · Groups of animals and how to tell them apart

<!-- .ven lang=en -->
Which pair are both vertebrates?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** pair · **What happens:** be · **To what, where:** both vertebrates

<!-- .vabout -->
This is test 8 of lesson 24 «Groups of animals and how to tell them apart» of the world 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/world/24-animal-groups/#t8).

## The question {#question}

```conllu
# sent_id = question:world:24-animal-groups:t8:1
# text = Which pair are both vertebrates?
1	Which	which	DET	WDT	PronType=Int	2	det	_	_
2	pair	pair	NOUN	NN	Number=Sing	5	nsubj	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
4	both	both	ADJ	JJ	Degree=Pos	5	amod	_	_
5	vertebrates	vertebrate	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
6	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | which pair | both vertebrates |  |  |  |  | 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 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
A snake and a sparrow

```conllu
# sent_id = question:world:24-animal-groups:t8:o1:1
# text = A snake and a sparrow
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	snake	snake	NOUN	NN	Number=Sing	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	sparrow	sparrow	NOUN	NN	Number=Sing	2	conj	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
A snail and a shark

```conllu
# sent_id = question:world:24-animal-groups:t8:o2:1
# text = A snail and a shark
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	snail	snail	NOUN	NN	Number=Sing	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	shark	shark	NOUN	NN	Number=Sing	2	conj	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
A worm and a whale

```conllu
# sent_id = question:world:24-animal-groups:t8:o3:1
# text = A worm and a whale
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	worm	worm	NOUN	NN	Number=Sing	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	whale	whale	NOUN	NN	Number=Sing	2	conj	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
A bee and a bear

```conllu
# sent_id = question:world:24-animal-groups:t8:o4:1
# text = A bee and a bear
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	bee	bee	NOUN	NN	Number=Sing	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	bear	bear	NOUN	NN	Number=Sing	2	conj	_	_
```

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

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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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