--- title: That is why you see the flash of lightning first and hear the thunde… — Thunder, sirens and how fast sound travels · tree and pragmatics description: That is why you see the flash of lightning first and hear the thunder later; every three seconds of waiting means the storm is about a kilometre away. Who acts: That, you, three seconds, storm. A sentence of the lesson «Thunder, sirens and how fast sound travels» of the physics course of Mova's prim --- [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/1/) [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/) / 1 # Thunder, sirens and how fast sound travels, sentence 1 That is why you see the flash of lightning first and hear the thunder later; every three seconds of waiting means the storm is about a kilometre away. **Who acts:** That, you, three seconds, storm, lightning · **What happens:** be, see, hear, mean, flash · **To what, where:** flash, thunder, kilometre · **Speech:** someone speaks here 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 (That, you, three seconds, storm), 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:1 # text = That is why you see the flash of lightning first and hear the thunder later; every three seconds of waiting means the storm is about a kilometre away. # 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 ×2, R7-rel-agree ×4 1 That that PRON DT Number=Sing|PronType=Dem 3 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 cop _ _ 3 why why ADV WRB PronType=Rel 0 root _ _ 4 you you PRON PRP Case=Nom|Person=2|PronType=Prs 5 nsubj _ _ 5 see see VERB VBP Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin 3 advcl:relcl _ _ 6 the the DET DT Definite=Def|PronType=Art 7 det _ _ 7 flash flash NOUN NN Number=Sing 5 obj _ _ 8 of of ADP IN _ 9 case _ _ 9 lightning lightning NOUN NN Number=Sing 7 nmod _ _ 10 first first ADV RB NumForm=Word|NumType=Ord 5 advmod _ Agree=R5-strong|Haiku=9:advmod 11 and and CCONJ CC _ 12 cc _ _ 12 hear hear VERB VB VerbForm=Inf 5 conj _ _ 13 the the DET DT Definite=Def|PronType=Art 14 det _ _ 14 thunder thunder NOUN NN Number=Sing 12 obj _ _ 15 later late ADV RBR Degree=Cmp 12 advmod _ _ 16 ; ; PUNCT , _ 19 punct _ _ 17 every every DET DT PronType=Tot 19 det _ Agree=R5-strong|Haiku=18:det 18 three three NUM CD NumForm=Word|NumType=Card 19 nummod _ _ 19 seconds second NOUN NNS Number=Plur 22 nsubj _ _ 20 of of ADP IN _ 21 case _ Agree=R7-rel-agree|Haiku=21:mark|HaikuPos=SCONJ:IN:_ 21 waiting waiting NOUN NN Number=Sing 19 nmod _ Agree=R7-rel-agree|Haiku=19:acl|HaikuPos=VERB:VBG:VerbForm=Ger 22 means mean VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 parataxis _ Agree=R7-rel-agree|Haiku=3:conj 23 the the DET DT Definite=Def|PronType=Art 24 det _ _ 24 storm storm NOUN NN Number=Sing 28 nsubj _ _ 25 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 28 cop _ _ 26 about about ADV RB _ 28 advmod _ Agree=R7-rel-agree|Haiku=28:case|HaikuPos=ADP:IN:_ 27 a a DET DT Definite=Ind|PronType=Art 28 det _ _ 28 kilometre kilometre NOUN NN Number=Sing 22 ccomp _ _ 29 away away ADV RB _ 28 advmod _ _ 30 . . PUNCT . _ 3 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: changed act=assert, polarity=none | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | That | | | | | why *property* | tree rules | | 2 | **see** | present | you | the flash of lightning | | | | first *property* | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer flash=Stimulus | | 3 | **hear** | infinitive | you *not said here* | the thunder | | | | late *property* | vn see-30.1-1-1 «NP V S»: agent=Experiencer thunder=Stimulus | | 4 | **mean** | present | every three seconds of waiting | | | | | | vn intend-61.2-1 «NP V S»: agent=Agent | | 5 | **is a** | present | the storm | a kilometre | | | | about, away *property* | tree rules | | 6 | **flash** | | lightning | | | | | | nom flash «event intransitive»: of=agent | 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:1`. **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 ×2, R7-rel-agree ×4. **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…, 0](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/0/) - next →: [Thunder, sirens and how fast sound tra…, 2](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/2/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/18-thunder-sirens-and-how-fast-sound-travels/)