---
title: «2 narwhal boys, one tusk each, n a walrus, how many tusks altogether» — The Arctic Ocean: walruses, bowheads,… · tree and pragmatics
description: «2 narwhal boys, one tusk each, n a walrus, how many tusks altogether» Test 4 · ★★ of lesson 169 «The Arctic Ocean: walruses, bowheads, the 400-year shark and the unicorn's tooth» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each opti
---

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# Test 4 · ★★ · The Arctic Ocean: walruses, bowheads, the 400-year shark a…

<!-- .ven lang=en -->
«2 narwhal boys, one tusk each, n a walrus, how many tusks altogether»

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓

<!-- .vabout -->
This is test 4 · ★★ of lesson 169 «The Arctic Ocean: walruses, bowheads, the 400-year shark and the unicorn's tooth» 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/169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth/#t4).

## The question {#question}

```conllu
# sent_id = question:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth:t4:1
# text = «2 narwhal boys, one tusk each, n a walrus, how many tusks altogether»
1	«	«	PUNCT	``	_	4	punct	_	SpaceAfter=No
2	2	2	NUM	CD	NumForm=Digit|NumType=Card	4	nummod	_	_
3	narwhal	narwhal	NOUN	NN	Number=Sing	4	compound	_	_
4	boys	boy	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
5	,	,	PUNCT	,	_	7	punct	_	_
6	one	one	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
7	tusk	tusk	NOUN	NN	Number=Sing	4	appos	_	_
8	each	each	DET	DT	PronType=Tot	7	nmod:unmarked	_	SpaceAfter=No
9	,	,	PUNCT	,	_	12	punct	_	_
10	n	and	CCONJ	CC	Abbr=Yes	12	cc	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	walrus	walrus	NOUN	NN	Number=Sing	4	conj	_	SpaceAfter=No
13	,	,	PUNCT	,	_	16	punct	_	_
14	how	how	ADV	WRB	PronType=Int	15	advmod	_	_
15	many	many	ADJ	JJ	Degree=Pos	16	amod	_	_
16	tusks	tusk	NOUN	NNS	Number=Plur	4	conj	_	_
17	altogether	altogether	ADV	RB	_	16	advmod	_	SpaceAfter=No
18	»	»	PUNCT	''	_	4	punct	_	_
```

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

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
4

```conllu
# sent_id = question:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth:t4:o1:1
# text = 4
1	4	4	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
3

```conllu
# sent_id = question:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth:t4:o2:1
# text = 3
1	3	3	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
2

```conllu
# sent_id = question:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth:t4:o3:1
# text = 2
1	2	2	NUM	LS	NumForm=Digit|NumType=Card	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
6

```conllu
# sent_id = question:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth:t4:o4:1
# text = 6
1	6	6	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

<!-- .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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