---
title: A jar closed while hot has a lid held down by the outside air once i… — Pressure tricks: pumps, tyres and vacuums · tree and pragmatics
description: A jar closed while hot has a lid held down by the outside air once it cools, and the lid pops as air rushes in when you open it. Who acts: jar, Air, lid, you. A sentence of the lesson «Pressure tricks: pumps, tyres and vacuums» of the physics course of Mova's primary school with its dependency tree 
---

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# Pressure tricks: pumps, tyres and vacuums, sentence 15

<!-- .ven lang=en -->
A jar closed while hot has a lid held down by the outside air once it cools, and the lid pops as air rushes in when you open it.

<!-- .vintro -->
**Who acts:** jar, Air, lid, you · **What happens:** close, have, hold down, cool, pop, rush in · **To what, where:** jar, lid, Air

<!-- .vabout -->
This is a sentence of the lesson «Pressure tricks: pumps, tyres and vacuums» 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 (jar, Air, lid, you), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:016-pressure-tricks-pumps-tyres-vacuums.lesson:15
# text = A jar closed while hot has a lid held down by the outside air once it cools, and the lid pops as air rushes in when you open it.
# source = school lesson (ours)
# course = physics
# lesson = 016-pressure-tricks-pumps-tyres-vacuums.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): R2-punct-next ×1, R5-strong ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	jar	jar	NOUN	NN	Number=Sing	6	nsubj	_	_
3	closed	close	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	while	while	SCONJ	IN	_	5	mark	_	_
5	hot	hot	ADJ	JJ	Degree=Pos	3	xcomp	_	_
6	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	lid	lid	NOUN	NN	Number=Sing	6	obj	_	_
9	held	hold	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	acl	_	_
10	down	down	ADP	RP	_	9	compound:prt	_	_
11	by	by	ADP	IN	_	14	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
13	outside	outside	ADJ	JJ	Degree=Pos	14	amod	_	_
14	air	air	NOUN	NN	Number=Sing	9	obl	_	_
15	once	once	SCONJ	IN	_	17	mark	_	_
16	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	17	nsubj	_	_
17	cools	cool	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	advcl	_	_
18	,	,	PUNCT	,	_	22	punct	_	Agree=R2-punct-next|Haiku=17:punct
19	and	and	CCONJ	CC	_	22	cc	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	Agree=R5-strong|Haiku=22:det
21	lid	lid	NOUN	NN	Number=Sing	22	nsubj	_	_
22	pops	pop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	17	conj	_	_
23	as	as	SCONJ	IN	_	25	mark	_	_
24	air	air	NOUN	NN	Number=Sing	25	nsubj	_	_
25	rushes	rush	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	advcl	_	_
26	in	in	ADP	RP	_	25	compound:prt	_	_
27	when	when	SCONJ	WRB	_	29	mark	_	_
28	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	29	nsubj	_	_
29	open	open	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	25	advcl	_	_
30	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	29	obj	_	_
31	.	.	PUNCT	.	_	6	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **close** | participle |  | a jar *not said here* |  |  |  | hot *property* | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 2 | **have** | present | a jar | a lid |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent lid=Patient |
| 3 | **hold down** | participle |  | a lid *not said here* |  |  |  | by the outside air | vn exist-47.1 «NP V PP.location»: agent=Theme by air=Location |
| 4 | **cool** | present | Air |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 5 | **pop** | present | the lid |  |  |  |  |  | vn break-45.1 «NP.patient V»: agent=Patient |
| 6 | **rush in** | present | air |  |  |  |  |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |
| 7 | **open** | present | you | Air |  |  |  |  | vn spatial\_configuration-47.6-1 «PP.location V NP»: agent=Location it=Theme |

<!-- .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:016-pressure-tricks-pumps-tyres-vacuums.lesson:15`.

**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): R2-punct-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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- next →: [Pressure tricks: pumps, tyres and vacu…, 16](https://md.mova.elamur.ai/free/en/corpora/school/physics/16-pressure-tricks-pumps-tyres-vacuums/16/)
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