---
title: A walrus has two long tusks, and walruses use their tusks like ice p… — The Arctic Ocean: walruses, bowheads, the 400-ye… · tree and pragmatics
description: A walrus has two long tusks, and walruses use their tusks like ice picks to pull their heavy bodies out of the water onto the ice. Who acts: walrus, walruses. A sentence of the lesson «The Arctic Ocean: walruses, bowheads, the 400-year shark and the unicorn's tooth» of the biology course of Mova's p
---

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# The Arctic Ocean: walruses, bowheads, the 400-year shark and the unicorn's tooth, sentence 4

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A walrus has two long tusks, and walruses use their tusks like ice picks to pull their heavy bodies out of the water onto the ice.

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**Who acts:** walrus, walruses · **What happens:** have, use, pull · **To what, where:** two long tusks, tusks, heavy bodies, water

<!-- .vabout -->
This is a sentence of the lesson «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 its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (walrus, walruses), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth.lesson:4
# text = A walrus has two long tusks, and walruses use their tusks like ice picks to pull their heavy bodies out of the water onto the ice.
# source = school lesson (ours)
# course = biology
# lesson = 169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	walrus	walrus	NOUN	NN	Number=Sing	3	nsubj	_	_
3	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	two	two	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
5	long	long	ADJ	JJ	Degree=Pos	6	amod	_	_
6	tusks	tusk	NOUN	NNS	Number=Plur	3	obj	_	_
7	,	,	PUNCT	,	_	10	punct	_	_
8	and	and	CCONJ	CC	_	10	cc	_	_
9	walruses	walrus	NOUN	NNS	Number=Plur	10	nsubj	_	_
10	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
11	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	12	nmod:poss	_	_
12	tusks	tusk	NOUN	NNS	Number=Plur	10	obj	_	_
13	like	like	ADP	IN	_	15	case	_	_
14	ice	ice	NOUN	NN	Number=Sing	15	compound	_	_
15	picks	pick	NOUN	NNS	Number=Plur	10	obl	_	Agree=R5-strong|Haiku=12:nmod
16	to	to	PART	TO	_	17	mark	_	_
17	pull	pull	VERB	VB	VerbForm=Inf	10	advcl	_	_
18	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	20	nmod:poss	_	_
19	heavy	heavy	ADJ	JJ	Degree=Pos	20	amod	_	_
20	bodies	body	NOUN	NNS	Number=Plur	17	obj	_	_
21	out	out	ADP	IN	_	24	case	_	_
22	of	of	ADP	IN	_	24	case	_	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
24	water	water	NOUN	NN	Number=Sing	17	obl	_	_
25	onto	onto	ADP	IN	_	27	case	_	_
26	the	the	DET	DT	Definite=Def|PronType=Art	27	det	_	_
27	ice	ice	NOUN	NN	Number=Sing	17	obl	_	_
28	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | a walrus | two long tusks |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent tusk=Patient |
| 2 | **use** | present | walruses | tusks's tusks |  |  |  | like ice picks | vn eat-39.1 «NP V NP»: agent=Agent tusk=Patient |
| 3 | **pull** | to-infinitive | walruses *not said here* | tusks's heavy bodies |  | the water |  | onto the ice | vn carry-11.4 «NP V NP PP.initial\_location»: agent=Agent body=Theme out water=Initial\_Location |

<!-- .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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:biology:169-the-arctic-ocean-walruses-bowheads-the-400-year-shark-and-the-unicorns-tooth.lesson:4`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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