---
title: The fire triangle: fire needs fuel, heat and oxygen, and goes out if… — Fire: what it needs and how to put it out · tree and pragmatics
description: The fire triangle: fire needs fuel, heat and oxygen, and goes out if one is taken away. Who acts: fire triangle. A sentence of the lesson «Fire: what it needs and how to put it out» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Fire: what it needs and how to put it out, sentence 5

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The fire triangle: fire needs fuel, heat and oxygen, and goes out if one is taken away.

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**Who acts:** fire triangle · **What happens:** need, go out, take away · **To what, where:** fuel, one

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This is a sentence of the lesson «Fire: what it needs and how to put it out» 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 (fire triangle), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:012-fire-what-it-needs.lesson:5
# text = The fire triangle: fire needs fuel, heat and oxygen, and goes out if one is taken away.
# source = school lesson (ours)
# course = chemistry
# lesson = 012-fire-what-it-needs.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 ×1, R6-punct-agree ×1, R8-pos-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	fire	fire	NOUN	NN	Number=Sing	3	compound	_	_
3	triangle	triangle	NOUN	NN	Number=Sing	6	nsubj	_	_
4	:	:	PUNCT	:	_	5	punct	_	_
5	fire	fire	NOUN	NN	Number=Sing	6	nsubj	_	Agree=R5-strong|Haiku=3:conj
6	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	fuel	fuel	NOUN	NN	Number=Sing	6	obj	_	_
8	,	,	PUNCT	,	_	9	punct	_	_
9	heat	heat	NOUN	NN	Number=Sing	7	conj	_	_
10	and	and	CCONJ	CC	_	11	cc	_	_
11	oxygen	oxygen	NOUN	NN	Number=Sing	7	conj	_	Agree=R3-conj-first|Haiku=9:conj
12	,	,	PUNCT	,	_	14	punct	_	_
13	and	and	CCONJ	CC	_	14	cc	_	_
14	goes	go	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	conj	_	_
15	out	out	ADP	RP	_	14	compound:prt	_	_
16	if	if	SCONJ	IN	_	19	mark	_	_
17	one	one	NUM	CD	NumForm=Word|NumType=Card	19	nsubj	_	Agree=R8-pos-agree|Haiku=19:nsubj|HaikuPos=PRON:NN:Number=Sing|PronType=Ind
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	aux:pass	_	_
19	taken	take	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	14	advcl	_	_
20	away	away	ADV	RB	_	19	advmod	_	_
21	.	.	PUNCT	.	_	3	punct	_	Agree=R6-punct-agree|Haiku=6:punct
```

## Pragmatics {#pragmatics}

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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 | **need** | present | the fire triangle | fuel and heat and oxygen |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot fuel=Theme |
| 2 | **go out** | present | the fire triangle *not said here* |  |  |  |  |  | vn interact-36.6 «NP V»: agent=Agent |
| 3 | **take away** *a condition, not said to happen* | present · passive |  | one |  |  |  | away *property* | vn remove-10.1 «NP V NP»: subject=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:012-fire-what-it-needs.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): R3-conj-first ×1, R5-strong ×1, R6-punct-agree ×1, 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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