---
title: Air pushes up just like water, only more gently, so a helium balloon… — Floating in the real world: ice, submarines and… · tree and pragmatics
description: Air pushes up just like water, only more gently, so a helium balloon or a hot-air balloon floats in the air like wood floats in a pond. Who acts: Air, helium balloon, wood. A sentence of the lesson «Floating in the real world: ice, submarines and balloons» of the physics course of Mova's primary sch
---

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# Floating in the real world: ice, submarines and balloons, sentence 2

<!-- .ven lang=en -->
Air pushes up just like water, only more gently, so a helium balloon or a hot-air balloon floats in the air like wood floats in a pond.

<!-- .vintro -->
**Who acts:** Air, helium balloon, wood · **What happens:** push up, float · **To what, where:** air, pond

<!-- .vabout -->
This is a sentence of the lesson «Floating in the real world: ice, submarines and balloons» 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 (Air, helium balloon, wood), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:012-ice-submarines-and-balloons.lesson:2
# text = Air pushes up just like water, only more gently, so a helium balloon or a hot-air balloon floats in the air like wood floats in a pond.
# source = school lesson (ours)
# course = physics
# lesson = 012-ice-submarines-and-balloons.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 ×2
1	Air	air	NOUN	NN	Number=Sing	2	nsubj	_	_
2	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	up	up	ADP	RP	_	2	compound:prt	_	_
4	just	just	ADV	RB	_	6	advmod	_	_
5	like	like	ADP	IN	_	6	case	_	_
6	water	water	NOUN	NN	Number=Sing	2	obl	_	_
7	,	,	PUNCT	,	_	9	punct	_	_
8	only	only	ADV	RB	_	9	advmod	_	_
9	more	more	ADV	RBR	Degree=Cmp	10	advmod	_	Agree=R5-strong|Haiku=2:advmod
10	gently	gently	ADV	RB	_	2	advmod	_	Agree=R5-strong|Haiku=9:advmod
11	,	,	PUNCT	,	_	15	punct	_	_
12	so	so	ADV	RB	_	22	advmod	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
14	helium	helium	NOUN	NN	Number=Sing	15	compound	_	_
15	balloon	balloon	NOUN	NN	Number=Sing	22	nsubj	_	_
16	or	or	CCONJ	CC	_	21	cc	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
18	hot	hot	ADJ	JJ	Degree=Pos	20	amod	_	_
19	-	-	PUNCT	HYPH	_	18	punct	_	_
20	air	air	NOUN	NN	Number=Sing	21	compound	_	_
21	balloon	balloon	NOUN	NN	Number=Sing	15	conj	_	_
22	floats	float	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
23	in	in	ADP	IN	_	25	case	_	_
24	the	the	DET	DT	Definite=Def|PronType=Art	25	det	_	_
25	air	air	NOUN	NN	Number=Sing	22	obl	_	_
26	like	like	SCONJ	IN	_	28	mark	_	_
27	wood	wood	NOUN	NN	Number=Sing	28	nsubj	_	_
28	floats	float	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	advcl	_	_
29	in	in	ADP	IN	_	31	case	_	_
30	a	a	DET	DT	Definite=Ind|PronType=Art	31	det	_	_
31	pond	pond	NOUN	NN	Number=Sing	28	obl	_	_
32	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: changed polarity=none

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **push up** | present | Air |  |  |  |  | like water; gently *property* | vn push-12-1-1 «NP V PP»: agent=Agent |
| 2 | **float** | present | a helium balloon or a air balloon |  |  | the air |  |  | vn run-51.3.2-2 «NP V PP.location»: agent=Theme in air=Trajectory |
| 3 | **float** | present | wood |  |  | a pond |  |  | vn run-51.3.2-2 «NP V PP.location»: agent=Theme in pond=Trajectory |

<!-- .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:012-ice-submarines-and-balloons.lesson:2`.

**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 ×2. **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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