---
title: Sound travels about one kilometre every three seconds, so counting t… — Olympiad: which claim is true? ★★★ · tree and pragmatics
description: Sound travels about one kilometre every three seconds, so counting the seconds between a flash and its thunder tells you how far away the lightning is. Who acts: Sound, thunder, lightning. A sentence of the lesson «Olympiad: which claim is true? ★★★» of the myths course of Mova's primary school with
---

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# Olympiad: which claim is true? ★★★, sentence 6

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Sound travels about one kilometre every three seconds, so counting the seconds between a flash and its thunder tells you how far away the lightning is.

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**Who acts:** Sound, thunder, lightning · **What happens:** travel, count, tell, be, thunder · **To what, where:** one kilometre, you · **Speech:** someone speaks here

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This is a sentence of the lesson «Olympiad: which claim is true? ★★★» of the myths 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, thunder, lightning), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:myths:036-olympiad-which-claim-is-true.lesson:6
# text = Sound travels about one kilometre every three seconds, so counting the seconds between a flash and its thunder tells you how far away the lightning is.
# source = school lesson (ours)
# course = myths
# lesson = 036-olympiad-which-claim-is-true.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 ×3
1	Sound	sound	NOUN	NN	Number=Sing	2	nsubj	_	_
2	travels	travel	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	about	about	ADV	RB	_	4	advmod	_	Agree=R5-strong|Haiku=5:case|HaikuPos=ADP:IN:_
4	one	one	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	kilometre	kilometre	NOUN	NN	Number=Sing	2	obl	_	_
6	every	every	DET	DT	PronType=Tot	8	det	_	Agree=R5-strong|Haiku=7:det
7	three	three	NUM	CD	NumForm=Word|NumType=Card	8	nummod	_	_
8	seconds	second	NOUN	NNS	Number=Plur	2	obl:unmarked	_	_
9	,	,	PUNCT	,	_	11	punct	_	_
10	so	so	CCONJ	CC	_	20	cc	_	_
11	counting	count	VERB	VBG	Tense=Pres|VerbForm=Part	20	csubj	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	seconds	second	NOUN	NNS	Number=Plur	11	obj	_	_
14	between	between	ADP	IN	_	16	case	_	_
15	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
16	flash	flash	NOUN	NN	Number=Sing	11	obl	_	_
17	and	and	CCONJ	CC	_	20	cc	_	_
18	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	19	nmod:poss	_	_
19	thunder	thunder	NOUN	NN	Number=Sing	20	nsubj	_	_
20	tells	tell	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
21	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	20	iobj	_	_
22	how	how	ADV	WRB	PronType=Int	23	advmod	_	Agree=R5-strong|Haiku=24:advmod
23	far	far	ADV	RB	Degree=Pos	24	advmod	_	_
24	away	away	ADV	RB	_	27	advmod	_	_
25	the	the	DET	DT	Definite=Def|PronType=Art	26	det	_	_
26	lightning	lightning	NOUN	NN	Number=Sing	27	nsubj	_	_
27	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	ccomp	_	_
28	.	.	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 | **travel** | present | Sound | one kilometre |  |  | second |  | vn run-51.3.2-1 «NP V»: agent=Theme |
| 2 | **count** | gerund |  |  |  |  | second | between a flash | vn matter-91 «NP V»: agent=Stimulus |
| 3 | **tell** *speech: assert* | present | Sound's thunder |  | you |  |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V NP S\_INF»: agent=Agent you=Recipient clause=Topic |
| 4 | **be** | present | the lightning |  |  |  |  | away *property* | vn exist-47.1 «NP V»: agent=Theme |
| 5 | **thunder** |  | Sound |  |  |  |  |  | nom thunder «event intransitive»: poss=agent |

<!-- .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:myths:036-olympiad-which-claim-is-true.lesson:6`.

**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 ×3. **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: [Olympiad: which claim is true? ★★★, 5](https://md.mova.elamur.ai/free/en/corpora/school/myths/36-olympiad-which-claim-is-true/5/)
- next →: [Olympiad: which claim is true? ★★★, 7](https://md.mova.elamur.ai/free/en/corpora/school/myths/36-olympiad-which-claim-is-true/7/)
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