---
title: A gas bubble needs a tiny place to get started: a scratch in a glass… — Fizzy drinks, Mentos and cola · tree and pragmatics
description: A gas bubble needs a tiny place to get started: a scratch in a glass, a speck of dust, a raisin's wrinkly skin. Who acts: gas bubble. A sentence of the lesson «Fizzy drinks, Mentos and cola» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Fizzy drinks, Mentos and cola, sentence 2

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A gas bubble needs a tiny place to get started: a scratch in a glass, a speck of dust, a raisin's wrinkly skin.

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**Who acts:** gas bubble · **What happens:** need, start · **To what, where:** tiny place

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This is a sentence of the lesson «Fizzy drinks, Mentos and cola» 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 (gas bubble), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:019-fizzy-drinks-mentos-and-cola.lesson:2
# text = A gas bubble needs a tiny place to get started: a scratch in a glass, a speck of dust, a raisin's wrinkly skin.
# source = school lesson (ours)
# course = chemistry
# lesson = 019-fizzy-drinks-mentos-and-cola.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	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	gas	gas	NOUN	NN	Number=Sing	3	compound	_	_
3	bubble	bubble	NOUN	NN	Number=Sing	4	nsubj	_	_
4	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	tiny	tiny	ADJ	JJ	Degree=Pos	7	amod	_	_
7	place	place	NOUN	NN	Number=Sing	4	obj	_	_
8	to	to	PART	TO	_	10	mark	_	_
9	get	get	AUX	VB	VerbForm=Inf	10	aux:pass	_	_
10	started	start	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	acl	_	_
11	:	:	PUNCT	:	_	13	punct	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	scratch	scratch	NOUN	NN	Number=Sing	7	appos	_	_
14	in	in	ADP	IN	_	16	case	_	_
15	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
16	glass	glass	NOUN	NN	Number=Sing	13	nmod	_	_
17	,	,	PUNCT	,	_	19	punct	_	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
19	speck	speck	NOUN	NN	Number=Sing	13	conj	_	_
20	of	of	ADP	IN	_	21	case	_	_
21	dust	dust	NOUN	NN	Number=Sing	19	nmod	_	_
22	,	,	PUNCT	,	_	27	punct	_	_
23	a	a	DET	DT	Definite=Ind|PronType=Art	24	det	_	_
24	raisin	raisin	NOUN	NN	Number=Sing	27	nmod:poss	_	_
25	's	's	PART	POS	_	24	case	_	_
26	wrinkly	wrinkly	ADJ	JJ	Degree=Pos	27	amod	_	_
27	skin	skin	NOUN	NN	Number=Sing	13	conj	_	_
28	.	.	PUNCT	.	_	4	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 | **need** | present | a gas bubble | a tiny place |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot place=Theme |
| 2 | **start** | to-infinitive · passive | a gas bubble *not said here* | a tiny place *not said here* |  |  |  |  | vn begin-55.1-1-1 «NP.eventuality V» |

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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:019-fizzy-drinks-mentos-and-cola.lesson:2`.

**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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