---
title: Pressing the brake pedal pushes fluid along pipes that squeeze pads… — Car safety: brakes, seat belts and airbags · tree and pragmatics
description: Pressing the brake pedal pushes fluid along pipes that squeeze pads onto discs on the wheels, and the rubbing turns the car's movement into heat. Who acts: Pressing, pipes, rubbing. A sentence of the lesson «Car safety: brakes, seat belts and airbags» of the technology course of Mova's primary schoo
---

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# Car safety: brakes, seat belts and airbags, sentence 5

<!-- .ven lang=en -->
Pressing the brake pedal pushes fluid along pipes that squeeze pads onto discs on the wheels, and the rubbing turns the car's movement into heat.

<!-- .vintro -->
**Who acts:** Pressing, pipes, rubbing · **What happens:** press, push, squeeze, turn, move · **To what, where:** brake pedal, fluid, pipes, pads, discs, movement

<!-- .vabout -->
This is a sentence of the lesson «Car safety: brakes, seat belts and airbags» of the technology 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 (Pressing, pipes, rubbing), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:018-car-safety.lesson:5
# text = Pressing the brake pedal pushes fluid along pipes that squeeze pads onto discs on the wheels, and the rubbing turns the car's movement into heat.
# source = school lesson (ours)
# course = technology
# lesson = 018-car-safety.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): R1-cc-next ×1, R5-strong ×1
1	Pressing	press	VERB	VBG	Tense=Pres|VerbForm=Part	5	csubj	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	brake	brake	NOUN	NN	Number=Sing	4	compound	_	_
4	pedal	pedal	NOUN	NN	Number=Sing	1	obj	_	_
5	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	fluid	fluid	NOUN	NN	Number=Sing	5	obj	_	_
7	along	along	ADP	IN	_	8	case	_	_
8	pipes	pipe	NOUN	NNS	Number=Plur	5	obl	_	_
9	that	that	PRON	WDT	PronType=Rel	10	nsubj	_	_
10	squeeze	squeeze	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	acl:relcl	_	_
11	pads	pad	NOUN	NNS	Number=Plur	10	obj	_	_
12	onto	onto	ADP	IN	_	13	case	_	_
13	discs	disc	NOUN	NNS	Number=Plur	10	obl	_	_
14	on	on	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	wheels	wheel	NOUN	NNS	Number=Plur	10	obl	_	_
17	,	,	PUNCT	,	_	21	punct	_	_
18	and	and	CCONJ	CC	_	21	cc	_	Agree=R1-cc-next|Haiku=5:cc
19	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
20	rubbing	rubbing	NOUN	NN	Number=Sing	21	nsubj	_	_
21	turns	turn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
22	the	the	DET	DT	Definite=Def|PronType=Art	23	det	_	_
23	car	car	NOUN	NN	Number=Sing	25	nmod:poss	_	_
24	's	's	PART	POS	_	23	case	_	_
25	movement	movement	NOUN	NN	Number=Sing	21	obj	_	_
26	into	into	ADP	IN	_	27	case	_	_
27	heat	heat	NOUN	NN	Number=Sing	21	obl	_	Agree=R5-strong|Haiku=25:nmod
28	.	.	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 | **press** | gerund |  | the brake pedal |  |  |  |  | vn push-12-1-1 «NP V NP»: agent=Agent pedal=Theme |
| 2 | **push** | present | Pressing | fluid |  | pipes |  |  | vn funnel-9.3-1-1 «NP V NP PP.trajectory»: agent=Agent fluid=Theme along pipe=Trajectory |
| 3 | **squeeze** | present | pipes | pads |  | discs |  | on the wheels | vn funnel-9.3-1-1 «NP V NP PP.destination»: agent=Agent pad=Theme onto disc=Destination |
| 4 | **turn** | present | the rubbing | the car's movement |  | heat |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent movement=Theme into heat=Trajectory |
| 5 | **move** |  |  | the car |  |  |  |  | nom movement «act transitive»: poss=patient |

<!-- .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:technology:018-car-safety.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): R1-cc-next ×1, 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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