---
title: It needs no air to push against, so it works in empty space too. — Rockets, satellites and astronauts · tree and pragmatics
description: It needs no air to push against, so it works in empty space too. Who acts: gas. A sentence of the lesson «Rockets, satellites and astronauts» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/71-rockets-satellites-astronauts/1/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / [Rockets, satellites and astronauts](https://md.mova.elamur.ai/free/en/corpora/school/world/71-rockets-satellites-astronauts/) / 1

# Rockets, satellites and astronauts, sentence 1

<!-- .ven lang=en -->
It needs no air to push against, so it works in empty space too.

<!-- .vintro -->
**Who acts:** gas · **What happens:** need, push, work · **To what, where:** air

<!-- .vabout -->
This is a sentence of the lesson «Rockets, satellites and astronauts» of the world 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 (gas), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:071-rockets-satellites-astronauts.lesson:1
# text = It needs no air to push against, so it works in empty space too.
# source = school lesson (ours)
# course = world
# lesson = 071-rockets-satellites-astronauts.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): R7-rel-agree ×1
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	no	no	DET	DT	PronType=Neg	4	det	_	_
4	air	air	NOUN	NN	Number=Sing	2	obj	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	push	push	VERB	VB	VerbForm=Inf	4	acl	_	_
7	against	against	ADP	IN	_	6	obl	_	_
8	,	,	PUNCT	,	_	11	punct	_	_
9	so	so	ADV	RB	_	11	advmod	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	nsubj	_	_
11	works	work	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	parataxis	_	Agree=R7-rel-agree|Haiku=2:conj
12	in	in	ADP	IN	_	14	case	_	_
13	empty	empty	ADJ	JJ	Degree=Pos	14	amod	_	_
14	space	space	NOUN	NN	Number=Sing	11	obl	_	_
15	too	too	ADV	RB	_	11	advmod	_	_
16	.	.	PUNCT	.	_	2	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 | **need** | present | gas | no air |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot air=Theme |
| 2 | **push** | to-infinitive | gas *not said here* | no air *not said here* |  |  |  |  | vn push-12-1-1 «NP V PP»: agent=Agent |
| 3 | **work** | present | gas |  |  |  |  | in empty space | vn employment-95.3 «NP V PP.theme»: agent=Agent in space=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.

<!-- div src -->

**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:world:071-rockets-satellites-astronauts.lesson:1`.

**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): R7-rel-agree ×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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Rockets, satellites and astronauts, 0](https://md.mova.elamur.ai/free/en/corpora/school/world/71-rockets-satellites-astronauts/0/)
- next →: [Rockets, satellites and astronauts, 2](https://md.mova.elamur.ai/free/en/corpora/school/world/71-rockets-satellites-astronauts/2/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/71-rockets-satellites-astronauts/)