---
title: Elephants use their tusks to dig for water and salt, strip bark, mov… — Elephants: families, tusks, ears and memory · tree and pragmatics
description: Elephants use their tusks to dig for water and salt, strip bark, move things and defend themselves. Who acts: Elephants. A sentence of the lesson «Elephants: families, tusks, ears and memory» of the biology course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Elephants: families, tusks, ears and memory, sentence 10

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Elephants use their tusks to dig for water and salt, strip bark, move things and defend themselves.

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**Who acts:** Elephants · **What happens:** use, dig, strip, move, defend · **To what, where:** tusks, bark, things

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This is a sentence of the lesson «Elephants: families, tusks, ears and memory» 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 (Elephants), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:022-elephants-families-tusks-ears-memory.lesson:10
# text = Elephants use their tusks to dig for water and salt, strip bark, move things and defend themselves.
# source = school lesson (ours)
# course = biology
# lesson = 022-elephants-families-tusks-ears-memory.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): R3-conj-first ×1, R5-strong ×2, R6-punct-agree ×1
1	Elephants	elephant	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	tusks	tusk	NOUN	NNS	Number=Plur	2	obj	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	dig	dig	VERB	VB	VerbForm=Inf	2	advcl	_	_
7	for	for	ADP	IN	_	8	case	_	_
8	water	water	NOUN	NN	Number=Sing	6	obl	_	_
9	and	and	CCONJ	CC	_	10	cc	_	_
10	salt	salt	NOUN	NN	Number=Sing	8	conj	_	_
11	,	,	PUNCT	,	_	12	punct	_	Agree=R6-punct-agree|Haiku=13:punct
12	strip	strip	VERB	VB	VerbForm=Inf	6	conj	_	Agree=R5-strong|Haiku=13:compound|HaikuPos=NOUN:NN:Number=Sing
13	bark	bark	NOUN	NN	Number=Sing	12	obj	_	Agree=R5-strong|Haiku=8:conj
14	,	,	PUNCT	,	_	15	punct	_	_
15	move	move	VERB	VB	VerbForm=Inf	6	conj	_	_
16	things	thing	NOUN	NNS	Number=Plur	15	obj	_	_
17	and	and	CCONJ	CC	_	18	cc	_	_
18	defend	defend	VERB	VB	VerbForm=Inf	6	conj	_	Agree=R3-conj-first|Haiku=15:conj
19	themselves	themselves	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs|Reflex=Yes	18	obj	_	_
20	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use** | present | Elephants | teeth's tusks |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent tusk=Patient |
| 2 | **dig** | to-infinitive | Elephants *not said here* |  |  |  |  | for water and salt | vn hunt-35.1 «NP V PP.theme PP.location»: agent=Agent for water=Theme |
| 3 | **strip** | infinitive | Elephants *not said here* | bark |  |  |  |  | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent bark=Patient |
| 4 | **move** | infinitive | Elephants *not said here* | things |  |  |  |  | vn roll-51.3.1 «NP V NP.theme»: agent=Agent thing=Theme |
| 5 | **defend** | infinitive | Elephants *not said here* | Tusks *= tusk* |  |  |  |  | vn defend-72.3 «NP V NP»: agent=Agent themselves=Beneficiary |

<!-- .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:022-elephants-families-tusks-ears-memory.lesson:10`.

**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): R3-conj-first ×1, R5-strong ×2, R6-punct-agree ×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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