--- title: In air sound travels about one kilometre every three seconds, while… — Thunder, sirens and how fast sound travels · tree and pragmatics description: In air sound travels about one kilometre every three seconds, while light arrives almost instantly, being about a million times faster. Who acts: sound, light. A sentence of the lesson «Thunder, sirens and how fast sound travels» of the physics course of Mova's primary school with its dependency tre --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/5/) [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/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / [Thunder, sirens and how fast sound tra…](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/) / 5 # Thunder, sirens and how fast sound travels, sentence 5 In air sound travels about one kilometre every three seconds, while light arrives almost instantly, being about a million times faster. **Who acts:** sound, light · **What happens:** travel, arrive, be · **To what, where:** one kilometre, air, million times 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 (sound, light), 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:5 # text = In air sound travels about one kilometre every three seconds, while light arrives almost instantly, being about a million times faster. # 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): R5-strong ×1, R7-rel-agree ×1 1 In in ADP IN _ 2 case _ _ 2 air air NOUN NN Number=Sing 4 obl _ _ 3 sound sound NOUN NN Number=Sing 4 nsubj _ _ 4 travels travel VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 about about ADV RB _ 6 advmod _ Agree=R5-strong|Haiku=7:case|HaikuPos=ADP:IN:_ 6 one one NUM CD NumForm=Word|NumType=Card 7 nummod _ _ 7 kilometre kilometre NOUN NN Number=Sing 4 obl _ _ 8 every every DET DT PronType=Tot 10 det _ _ 9 three three NUM CD NumForm=Word|NumType=Card 10 nummod _ _ 10 seconds second NOUN NNS Number=Plur 4 obl:unmarked _ _ 11 , , PUNCT , _ 14 punct _ _ 12 while while SCONJ IN _ 14 mark _ _ 13 light light NOUN NN Number=Sing 14 nsubj _ _ 14 arrives arrive VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 advcl _ _ 15 almost almost ADV RB _ 16 advmod _ _ 16 instantly instantly ADV RB _ 14 advmod _ _ 17 , , PUNCT , _ 22 punct _ _ 18 being be AUX VBG Tense=Pres|VerbForm=Part 22 cop _ _ 19 about about ADV RB _ 21 advmod _ Agree=R7-rel-agree|Haiku=21:case|HaikuPos=ADP:IN:_ 20 a a DET DT Definite=Ind|PronType=Art 21 det _ _ 21 million million NUM CD NumForm=Word|NumType=Card 22 nummod _ _ 22 times time NOUN NNS Number=Plur 4 advcl _ _ 23 faster fast ADJ JJR Degree=Cmp 22 amod _ _ 24 . . PUNCT . _ 4 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: kept the draft | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **travel** | present | sound | one kilometre | | air | second | | vn run-51.3.2-1 «NP V PP.location»: agent=Theme in air=Trajectory | | 2 | **arrive** | present | light | | | | | instantly *property* | vn escape-51.1-1 «NP V»: agent=Theme | | 3 | **is a** | gerund | sound *not said here* | million times | | | | | tree rules | 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. **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:5`. **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 ×1, 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/). - ← previous: [Thunder, sirens and how fast sound tra…, 4](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/4/) - next →: [Thunder, sirens and how fast sound tra…, 6](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/6/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/)