---
title: In empty space there is nothing to carry the wobble, so no sound can… — What sound is: wobbles in the air · tree and pragmatics
description: In empty space there is nothing to carry the wobble, so no sound can travel; real astronauts talk to each other by radio. Who acts: nothing, sound, real astronauts. A sentence of the lesson «What sound is: wobbles in the air» of the physics course of Mova's primary school with its dependency tree an
---

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# What sound is: wobbles in the air, sentence 16

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In empty space there is nothing to carry the wobble, so no sound can travel; real astronauts talk to each other by radio.

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**Who acts:** nothing, sound, real astronauts · **What happens:** be, carry, travel, talk · **To what, where:** empty space, wobble

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This is a sentence of the lesson «What sound is: wobbles in the air» 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 (nothing, sound, real astronauts), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:017-what-sound-is-wobbles-in-the-air.lesson:16
# text = In empty space there is nothing to carry the wobble, so no sound can travel; real astronauts talk to each other by radio.
# source = school lesson (ours)
# course = physics
# lesson = 017-what-sound-is-wobbles-in-the-air.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): no change
1	In	in	ADP	IN	_	3	case	_	_
2	empty	empty	ADJ	JJ	Degree=Pos	3	amod	_	_
3	space	space	NOUN	NN	Number=Sing	5	obl	_	_
4	there	there	PRON	EX	PronType=Dem	5	expl	_	_
5	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	5	nsubj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	carry	carry	VERB	VB	VerbForm=Inf	6	acl	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	wobble	wobble	NOUN	NN	Number=Sing	8	obj	_	_
11	,	,	PUNCT	,	_	16	punct	_	_
12	so	so	ADV	RB	_	16	advmod	_	_
13	no	no	DET	DT	PronType=Neg	14	det	_	_
14	sound	sound	NOUN	NN	Number=Sing	16	nsubj	_	_
15	can	can	AUX	MD	VerbForm=Fin	16	aux	_	_
16	travel	travel	VERB	VB	VerbForm=Inf	8	conj	_	_
17	;	;	PUNCT	:	_	5	punct	_	_
18	real	real	ADJ	JJ	Degree=Pos	19	amod	_	_
19	astronauts	astronaut	NOUN	NNS	Number=Plur	20	nsubj	_	_
20	talk	talk	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	_
21	to	to	ADP	IN	_	22	case	_	_
22	each	each	DET	DT	ExtPos=PRON|PronType=Rcp	20	obl	_	_
23	other	other	ADJ	JJ	Degree=Pos	22	fixed	_	_
24	by	by	ADP	IN	_	25	case	_	_
25	radio	radio	NOUN	NN	Number=Sing	20	obl	_	_
26	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **be** | present | nothing |  |  | empty space; there |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme in space=Location |
| 2 | **carry** | to-infinitive | nothing *not said here* | the wobble |  |  |  |  | vn carry-11.4 «NP V NP»: agent=Agent wobble=Theme |
| 3 | **travel** | can | no sound |  |  |  |  |  | vn run-51.3.2-1 «NP V»: agent=Theme |
| 4 | **talk** | present | real astronauts |  |  |  |  | to each; by radio | vn talk-37.5 «NP V PP.co-agent»: agent=Agent to each=Co-Agent |

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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:017-what-sound-is-wobbles-in-the-air.lesson:16`.

**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): no change. **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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- ← previous: [What sound is: wobbles in the air, 15](https://md.mova.elamur.ai/free/en/corpora/school/physics/17-what-sound-is-wobbles-in-the-air/15/)
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