---
title: An earthquake is the sudden shaking when rocks along a fault slip af… — Earthquakes · tree and pragmatics
description: An earthquake is the sudden shaking when rocks along a fault slip after strain has built up. Who acts: earthquake, rocks, strain. A sentence of the lesson «Earthquakes» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Earthquakes, sentence 5

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An earthquake is the sudden shaking when rocks along a fault slip after strain has built up.

<!-- .vintro -->
**Who acts:** earthquake, rocks, strain · **What happens:** be, slip, build up · **To what, where:** sudden shaking

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This is a sentence of the lesson «Earthquakes» of the geography 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 (earthquake, rocks, strain), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:044-earthquakes.lesson:5
# text = An earthquake is the sudden shaking when rocks along a fault slip after strain has built up.
# source = school lesson (ours)
# course = geography
# lesson = 044-earthquakes.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): no change
1	An	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	earthquake	earthquake	NOUN	NN	Number=Sing	6	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	sudden	sudden	ADJ	JJ	Degree=Pos	6	amod	_	_
6	shaking	shaking	NOUN	NN	Number=Sing	0	root	_	_
7	when	when	ADV	WRB	PronType=Int	12	advmod	_	_
8	rocks	rock	NOUN	NNS	Number=Plur	12	nsubj	_	_
9	along	along	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	fault	fault	NOUN	NN	Number=Sing	12	obl	_	_
12	slip	slip	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	advcl	_	_
13	after	after	SCONJ	IN	_	16	mark	_	_
14	strain	strain	NOUN	NN	Number=Sing	16	nsubj	_	_
15	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	16	aux	_	_
16	built	build	VERB	VBN	Tense=Past|VerbForm=Part	12	advcl	_	_
17	up	up	ADP	RP	_	16	compound:prt	_	_
18	.	.	PUNCT	.	_	6	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | a earthquake | the sudden shaking |  |  |  |  | tree rules |
| 2 | **slip** | present | rocks |  |  |  |  | along a fault | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |
| 3 | **build up** | present · perfect | strain |  |  |  |  |  | vn caused\_calibratable\_cos-45.6.2-1 «NP V ADV-Middle»: agent=Patient |

<!-- .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:geography:044-earthquakes.lesson:5`.

**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): no change. **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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