---
title: A solid keeps its own shape because its particles are held in fixed… — Solids, liquids and gases · tree and pragmatics
description: A solid keeps its own shape because its particles are held in fixed places and only wobble. Who acts: solid. A sentence of the lesson «Solids, liquids and gases» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Solids, liquids and gases, sentence 5

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A solid keeps its own shape because its particles are held in fixed places and only wobble.

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**Who acts:** solid · **What happens:** keep, hold, fix, wobble · **To what, where:** own shape, particles, fixed places

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This is a sentence of the lesson «Solids, liquids and gases» of the chemistry 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 (solid), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:004-solids-liquids-and-gases.lesson:5
# text = A solid keeps its own shape because its particles are held in fixed places and only wobble.
# source = school lesson (ours)
# course = chemistry
# lesson = 004-solids-liquids-and-gases.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): R8-pos-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	solid	solid	NOUN	NN	Number=Sing	3	nsubj	_	_
3	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
5	own	own	ADJ	JJ	Degree=Pos	6	amod	_	_
6	shape	shape	NOUN	NN	Number=Sing	3	obj	_	_
7	because	because	SCONJ	IN	_	11	mark	_	_
8	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	particles	particle	NOUN	NNS	Number=Plur	11	nsubj:pass	_	_
10	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	11	aux:pass	_	_
11	held	hold	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	_	_
12	in	in	ADP	IN	_	14	case	_	_
13	fixed	fix	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	14	amod	_	Agree=R8-pos-agree|Haiku=14:amod|HaikuPos=ADJ:JJ:Degree=Pos
14	places	place	NOUN	NNS	Number=Plur	11	obl	_	_
15	and	and	CCONJ	CC	_	17	cc	_	_
16	only	only	ADV	RB	_	17	advmod	_	_
17	wobble	wobble	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	11	conj	_	_
18	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

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

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present | a solid | slime's own shape |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent shape=Theme |
| 2 | **hold** | present · passive |  | slime's particles |  | fixed places |  |  | vn keep-15.2 «NP V NP PP.location»: subject=Theme in place=Location |
| 3 | **fix** | participle |  |  |  |  |  |  | vn shake-22.3-2 «NP V ADV-Middle»: agent=Patient |
| 4 | **wobble** | present |  |  |  |  |  |  | vn modes\_of\_being\_with\_motion-47.3 «NP V»: agent=Theme |

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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:chemistry:004-solids-liquids-and-gases.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): R8-pos-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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