---
title: A whisper can travel round a curved wall in a whispering gallery, su… — Thunder, sirens and how fast sound travels · tree and pragmatics
description: A whisper can travel round a curved wall in a whispering gallery, such as the famous one in St Paul's Cathedral in London. Who acts: whisper. A sentence of the lesson «Thunder, sirens and how fast sound travels» of the physics course of Mova's primary school with its dependency tree and the pragmati
---

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# Thunder, sirens and how fast sound travels, sentence 16

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A whisper can travel round a curved wall in a whispering gallery, such as the famous one in St Paul's Cathedral in London.

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**Who acts:** whisper · **What happens:** travel, curve · **To what, where:** whispering gallery

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This is a sentence of the lesson «Thunder, sirens and how fast sound travels» 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 (whisper), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:018-thunder-sirens-and-how-fast-sound-travels.lesson:16
# text = A whisper can travel round a curved wall in a whispering gallery, such as the famous one in St Paul's Cathedral in London.
# source = school lesson (ours)
# course = physics
# lesson = 018-thunder-sirens-and-how-fast-sound-travels.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	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	whisper	whisper	NOUN	NN	Number=Sing	4	nsubj	_	_
3	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
4	travel	travel	VERB	VB	VerbForm=Inf	0	root	_	_
5	round	round	ADP	IN	_	8	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	curved	curve	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	amod	_	_
8	wall	wall	NOUN	NN	Number=Sing	4	obl	_	_
9	in	in	ADP	IN	_	12	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
11	whispering	whispering	NOUN	NN	Number=Sing	12	compound	_	_
12	gallery	gallery	NOUN	NN	Number=Sing	4	obl	_	_
13	,	,	PUNCT	,	_	18	punct	_	_
14	such	such	ADJ	JJ	Degree=Pos|ExtPos=ADP	18	case	_	_
15	as	as	ADP	IN	_	14	fixed	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	18	det	_	_
17	famous	famous	ADJ	JJ	Degree=Pos	18	amod	_	_
18	one	one	NOUN	NN	Number=Sing	12	appos	_	_
19	in	in	ADP	IN	_	23	case	_	_
20	St	St	PROPN	NNP	Number=Sing	21	compound	_	_
21	Paul	Paul	PROPN	NNP	Number=Sing	23	nmod:poss	_	_
22	's	's	PART	POS	_	21	case	_	_
23	Cathedral	Cathedral	PROPN	NNP	Number=Sing	18	nmod	_	Agree=R8-pos-agree|Haiku=18:nmod|HaikuPos=NOUN:NN:Number=Sing
24	in	in	ADP	IN	_	25	case	_	_
25	London	London	PROPN	NNP	Number=Sing	23	nmod	_	_
26	.	.	PUNCT	.	_	4	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: changed act=assert

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **travel** | can | a whisper |  |  | a whispering gallery |  | round a curved wall | vn run-51.3.2-1 «NP V PP.location»: agent=Theme round wall=Trajectory |
| 2 | **curve** | participle |  |  |  |  |  |  | vn knead-26.5 «NP.material V PP.product»: agent=Material |

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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:018-thunder-sirens-and-how-fast-sound-travels.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): 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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