---
title: Petrol burns inside a car engine and the hot gas pushes the parts th… — Energy: what makes things happen · tree and pragmatics
description: Petrol burns inside a car engine and the hot gas pushes the parts that turn the wheels; electric cars store their energy in big batteries. Who acts: Petrol, hot gas, parts, electric cars. A sentence of the lesson «Energy: what makes things happen» of the physics course of Mova's primary school with 
---

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# Energy: what makes things happen, sentence 8

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Petrol burns inside a car engine and the hot gas pushes the parts that turn the wheels; electric cars store their energy in big batteries.

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**Who acts:** Petrol, hot gas, parts, electric cars · **What happens:** burn, push, turn, store · **To what, where:** car engine, parts, wheels, energy, big batteries

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This is a sentence of the lesson «Energy: what makes things happen» of the physics 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 (Petrol, hot gas, parts, electric cars), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:031-energy-what-makes-things-happen.lesson:8
# text = Petrol burns inside a car engine and the hot gas pushes the parts that turn the wheels; electric cars store their energy in big batteries.
# source = school lesson (ours)
# course = physics
# lesson = 031-energy-what-makes-things-happen.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
1	Petrol	petrol	NOUN	NN	Number=Sing	2	nsubj	_	_
2	burns	burn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	inside	inside	ADP	IN	_	6	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	car	car	NOUN	NN	Number=Sing	6	compound	_	_
6	engine	engine	NOUN	NN	Number=Sing	2	obl	_	_
7	and	and	CCONJ	CC	_	11	cc	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
9	hot	hot	ADJ	JJ	Degree=Pos	10	amod	_	_
10	gas	gas	NOUN	NN	Number=Sing	11	nsubj	_	_
11	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	parts	part	NOUN	NNS	Number=Plur	11	obj	_	_
14	that	that	PRON	WDT	PronType=Rel	15	nsubj	_	_
15	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	13	acl:relcl	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
17	wheels	wheel	NOUN	NNS	Number=Plur	15	obj	_	_
18	;	;	PUNCT	,	_	21	punct	_	_
19	electric	electric	ADJ	JJ	Degree=Pos	20	amod	_	_
20	cars	car	NOUN	NNS	Number=Plur	21	nsubj	_	_
21	store	store	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	parataxis	_	_
22	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	23	nmod:poss	_	_
23	energy	energy	NOUN	NN	Number=Sing	21	obj	_	_
24	in	in	ADP	IN	_	26	case	_	_
25	big	big	ADJ	JJ	Degree=Pos	26	amod	_	_
26	batteries	battery	NOUN	NNS	Number=Plur	21	obl	_	Agree=R5-strong|Haiku=23:nmod
27	.	.	PUNCT	.	_	2	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 | **burn** | present | Petrol |  |  | a car engine |  |  | vn light\_emission-43.1 «NP V PP.location»: agent=Theme inside engine=Location |
| 2 | **push** | present | the hot gas | the parts |  |  |  |  | vn carry-11.4-1-1 «NP V NP»: agent=Agent part=Theme |
| 3 | **turn** | present | the parts | the wheels |  |  |  |  | vn roll-51.3.1 «NP V NP.theme»: agent=Agent wheel=Theme |
| 4 | **store** | present | electric cars | cars's energy |  | big batteries |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent energy=Theme in battery=Location |

<!-- .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:physics:031-energy-what-makes-things-happen.lesson:8`.

**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. **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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