---
title: Bending a glow stick breaks a thin glass tube inside, two chemicals… — Colours of fire: fireworks · tree and pragmatics
description: Bending a glow stick breaks a thin glass tube inside, two chemicals mix, and their reaction gives out light with almost no heat. Who acts: Bending, two chemicals, reaction, chemicals. A sentence of the lesson «Colours of fire: fireworks» of the chemistry course of Mova's primary school with its depe
---

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# Colours of fire: fireworks, sentence 16

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Bending a glow stick breaks a thin glass tube inside, two chemicals mix, and their reaction gives out light with almost no heat.

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**Who acts:** Bending, two chemicals, reaction, chemicals · **What happens:** bend, break, mix, give out, react · **To what, where:** glow stick, thin glass tube, light

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This is a sentence of the lesson «Colours of fire: fireworks» 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 (Bending, two chemicals, reaction, chemicals), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:026-colours-of-fire-fireworks.lesson:16
# text = Bending a glow stick breaks a thin glass tube inside, two chemicals mix, and their reaction gives out light with almost no heat.
# source = school lesson (ours)
# course = chemistry
# lesson = 026-colours-of-fire-fireworks.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, R7-rel-agree ×1
1	Bending	bend	VERB	VBG	VerbForm=Ger	5	csubj	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
3	glow	glow	NOUN	NN	Number=Sing	4	compound	_	_
4	stick	stick	NOUN	NN	Number=Sing	1	obj	_	_
5	breaks	break	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
7	thin	thin	ADJ	JJ	Degree=Pos	9	amod	_	_
8	glass	glass	NOUN	NN	Number=Sing	9	compound	_	_
9	tube	tube	NOUN	NN	Number=Sing	5	obj	_	_
10	inside	inside	ADV	RB	_	9	advmod	_	_
11	,	,	PUNCT	,	_	14	punct	_	_
12	two	two	NUM	CD	NumForm=Word|NumType=Card	13	nummod	_	_
13	chemicals	chemical	NOUN	NNS	Number=Plur	14	nsubj	_	_
14	mix	mix	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	Agree=R7-rel-agree|Haiku=5:conj
15	,	,	PUNCT	,	_	19	punct	_	_
16	and	and	CCONJ	CC	_	19	cc	_	_
17	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	18	nmod:poss	_	_
18	reaction	reaction	NOUN	NN	Number=Sing	19	nsubj	_	_
19	gives	give	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
20	out	out	ADP	RP	_	19	compound:prt	_	_
21	light	light	NOUN	NN	Number=Sing	19	obj	_	_
22	with	with	ADP	IN	_	25	case	_	_
23	almost	almost	ADV	RB	_	25	advmod	_	_
24	no	no	DET	DT	PronType=Neg	25	det	_	_
25	heat	heat	NOUN	NN	Number=Sing	19	obl	_	Agree=R5-strong|Haiku=21:nmod
26	.	.	PUNCT	.	_	5	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 | **bend** | gerund |  | a glow stick |  |  |  |  | vn knead-26.5 «NP V NP.material»: agent=Agent stick=Material |
| 2 | **break** | present | Bending | a thin glass tube |  |  |  |  | vn hurt-40.8.3-1-1 «NP V NP»: agent=Experiencer tube=Patient |
| 3 | **mix** | present | two chemicals |  |  |  |  |  | vn mix-22.1-1-1 «NP V»: agent=Patient |
| 4 | **give out** | present | chemicals's reaction | light |  |  |  | with no heat | vn contribute-13.2 «NP V NP.theme (PP)»: agent=Agent light=Theme |
| 5 | **react** |  | chemicals *= chemical* |  |  |  |  |  | nom reaction «process intransitive»: poss=agent |

<!-- .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:chemistry:026-colours-of-fire-fireworks.lesson:16`.

**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, R7-rel-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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