---
title: Sound gets quieter the further it travels from its source. — Sound — vibrations, loudness, pitch and echoes · tree and pragmatics
description: Sound gets quieter the further it travels from its source. Who acts: Sound. A sentence of the lesson «Sound — vibrations, loudness, pitch and echoes» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Sound — vibrations, loudness, pitch and echoes, sentence 18

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Sound gets quieter the further it travels from its source.

<!-- .vintro -->
**Who acts:** Sound · **What happens:** get, travel · **To what, where:** source

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This is a sentence of the lesson «Sound — vibrations, loudness, pitch and echoes» 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 (Sound), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:054-sound.lesson:18
# text = Sound gets quieter the further it travels from its source.
# source = school lesson (ours)
# course = world
# lesson = 054-sound.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): R8-pos-agree ×1
1	Sound	sound	NOUN	NN	Number=Sing	2	nsubj	_	Agree=R8-pos-agree|Haiku=2:nsubj|HaikuPos=PROPN:NNP:Number=Sing
2	gets	get	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	quieter	quiet	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
5	further	further	ADJ	JJ	Degree=Pos	7	amod	_	_
6	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	nsubj	_	_
7	travels	travel	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
8	from	from	ADP	IN	_	10	case	_	_
9	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	source	source	NOUN	NN	Number=Sing	7	obl	_	_
11	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **get** | present | Sound |  |  |  |  | quiet *property* | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer |
| 2 | **travel** | present | sound |  |  | sound's source |  |  | vn run-51.3.2-1 «NP V PP.location»: agent=Theme from source=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:world:054-sound.lesson:18`.

**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): R8-pos-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/).

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