---
title: Your brother blows a balloon until it bangs. Why did it burst? — The air presses on everything · tree and pragmatics
description: Your brother blows a balloon until it bangs. Why did it burst? Test 7 of lesson 14 «The air presses on everything» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 7 · The air presses on everything

<!-- .ven lang=en -->
Your brother blows a balloon until it bangs. Why did it burst?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** brother, balloon · **What happens:** blow, bang, burst · **To what, where:** balloon

<!-- .vabout -->
This is test 7 of lesson 14 «The air presses on everything» of the physics course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/physics/14-the-air-presses-on-everything/#t7).

## The question {#question}

<!-- .note -->
*Sentence 1:* Your brother blows a balloon until it bangs.

```conllu
# sent_id = question:physics:14-the-air-presses-on-everything:t7:1
# text = Your brother blows a balloon until it bangs.
1	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	brother	brother	NOUN	NN	Number=Sing	3	nsubj	_	_
3	blows	blow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	balloon	balloon	NOUN	NN	Number=Sing	3	obj	_	_
6	until	until	SCONJ	IN	_	8	mark	_	_
7	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	8	nsubj	_	_
8	bangs	bang	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	SpaceAfter=No
9	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **blow** | present | Your brother | a balloon |  |  |  |  | vn split-23.2 «NP V NP apart»: agent=Agent balloon=Patient |
| 2 | **bang** | present | balloon |  |  |  |  |  | vn sound\_emission-43.2 «NP V»: agent=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.

<!-- .note -->
*Sentence 2:* Why did it burst?

```conllu
# sent_id = question:physics:14-the-air-presses-on-everything:t7:2
# text = Why did it burst?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	aux	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
4	burst	burst	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
5	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **burst** | past · do-support | balloon |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
The rubber could not stretch any more against the air pushing out

```conllu
# sent_id = question:physics:14-the-air-presses-on-everything:t7:o1:1
# text = The rubber could not stretch any more against the air pushing out
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	rubber	rubber	NOUN	NN	Number=Sing	5	nsubj	_	_
3	could	could	AUX	MD	VerbForm=Fin	5	aux	_	_
4	not	not	PART	RB	Polarity=Neg	5	advmod	_	_
5	stretch	stretch	VERB	VB	VerbForm=Inf	0	root	_	_
6	any	any	ADV	RB	_	7	advmod	_	_
7	more	more	ADV	RBR	Degree=Cmp	5	advmod	_	_
8	against	against	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	air	air	NOUN	NN	Number=Sing	5	obl	_	_
11	pushing	push	VERB	VBG	VerbForm=Ger	10	acl	_	_
12	out	out	ADP	RP	_	11	compound:prt	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **stretch** | could | the rubber |  |  |  |  | against the air | vn bend-45.2 «NP.patient V»: agent=Patient |
| 2 | **push out** | gerund | the air *not said here* |  |  |  |  |  | vn push-12-1-1 «NP V PP»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
The balloon got too cold to hold the air

```conllu
# sent_id = question:physics:14-the-air-presses-on-everything:t7:o2:1
# text = The balloon got too cold to hold the air
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	balloon	balloon	NOUN	NN	Number=Sing	3	nsubj	_	_
3	got	get	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	too	too	ADV	RB	_	5	advmod	_	_
5	cold	cold	ADJ	JJ	Degree=Pos	3	xcomp	_	_
6	to	to	PART	TO	_	7	mark	_	_
7	hold	hold	VERB	VB	VerbForm=Inf	3	xcomp	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	air	air	NOUN	NN	Number=Sing	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **get** | past | the balloon |  |  |  |  | cold *property* | vn comprehend-87.2-1 «NP V how S\_INF»: agent=Experiencer clause=Stimulus |
| 2 | **hold** | to-infinitive | the balloon *not said here* | the air |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent air=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
The air inside suddenly turned heavy

```conllu
# sent_id = question:physics:14-the-air-presses-on-everything:t7:o3:1
# text = The air inside suddenly turned heavy
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	air	air	NOUN	NN	Number=Sing	5	nsubj:pass	_	_
3	inside	inside	ADV	RB	_	2	advmod	_	_
4	suddenly	suddenly	ADV	RB	_	5	advmod	_	_
5	turned	turn	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	heavy	heavy	ADJ	JJ	Degree=Pos	5	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn** | participle · passive |  | the air |  |  |  | heavy, suddenly *property* | vn roll-51.3.1 «NP V NP.theme»: subject=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
Balloons always burst after a set number of breaths, however big they are

```conllu
# sent_id = question:physics:14-the-air-presses-on-everything:t7:o4:1
# text = Balloons always burst after a set number of breaths, however big they are
1	Balloons	balloon	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	always	always	ADV	RB	PronType=Tot	3	advmod	_	_
3	burst	burst	VERB	VBD	Mood=Ind|Tense=Past|VerbForm=Fin	0	root	_	_
4	after	after	ADP	IN	_	7	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	set	set	ADJ	JJ	Degree=Pos	7	amod	_	_
7	number	number	NOUN	NN	Number=Sing	3	obl	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	breaths	breath	NOUN	NNS	Number=Plur	7	nmod	_	SpaceAfter=No
10	,	,	PUNCT	,	_	12	punct	_	_
11	however	however	ADV	RB	_	12	advmod	_	_
12	big	big	ADJ	JJ	Degree=Pos	3	conj	_	_
13	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	12	nsubj	_	_
14	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	12	cop	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **burst** | past | Balloons |  |  |  | after a set number of breaths | always *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **is** | present | Balloons *= balloon* |  |  |  |  | big, however *property* | tree rules |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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