--- title: Light also bends when it goes from water into air, which is why a st… — Mirrors, rainbows and the blue sky · tree and pragmatics description: Light also bends when it goes from water into air, which is why a straw in your glass looks broken at the surface. Who acts: Light, air, straw. A sentence of the lesson «Mirrors, rainbows and the blue sky» of the physics course of Mova's primary school with its dependency tree and the pragmatics of --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/4/) [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/) / [Mirrors, rainbows and the blue sky](https://md.mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/) / 4 # Mirrors, rainbows and the blue sky, sentence 4 Light also bends when it goes from water into air, which is why a straw in your glass looks broken at the surface. **Who acts:** Light, air, straw · **What happens:** bend, go, be, look, break · **To what, where:** water, surface This is a sentence of the lesson «Mirrors, rainbows and the blue sky» 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 (Light, air, straw), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:physics:021-mirrors-rainbows-and-the-blue-sky.lesson:4 # text = Light also bends when it goes from water into air, which is why a straw in your glass looks broken at the surface. # source = school lesson (ours) # course = physics # lesson = 021-mirrors-rainbows-and-the-blue-sky.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): no change 1 Light light NOUN NN Number=Sing 3 nsubj _ _ 2 also also ADV RB _ 3 advmod _ _ 3 bends bend VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 when when ADV WRB PronType=Int 6 advmod _ _ 5 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 6 nsubj _ _ 6 goes go VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 advcl _ _ 7 from from ADP IN _ 8 case _ _ 8 water water NOUN NN Number=Sing 6 obl _ _ 9 into into ADP IN _ 10 case _ _ 10 air air NOUN NN Number=Sing 6 obl _ _ 11 , , PUNCT , _ 14 punct _ _ 12 which which PRON WDT PronType=Rel 14 nsubj _ _ 13 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 14 cop _ _ 14 why why ADV WRB PronType=Int 10 acl:relcl _ _ 15 a a DET DT Definite=Ind|PronType=Art 16 det _ _ 16 straw straw NOUN NN Number=Sing 20 nsubj _ _ 17 in in ADP IN _ 19 case _ _ 18 your your PRON PRP$ Case=Gen|Person=2|Poss=Yes|PronType=Prs 19 nmod:poss _ _ 19 glass glass NOUN NN Number=Sing 16 nmod _ _ 20 looks look VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 14 ccomp _ _ 21 broken break VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 20 xcomp _ _ 22 at at ADP IN _ 24 case _ _ 23 the the DET DT Definite=Def|PronType=Art 24 det _ _ 24 surface surface NOUN NN Number=Sing 21 obl _ _ 25 . . PUNCT . _ 3 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: changed polarity=none | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **bend** | present | Light | | | | | | vn assuming\_position-50 «NP V»: agent=Agent | | 2 | **go** | present | light | | | water | | into air | vn escape-51.1-1 «NP V PP.initial\_location PP.destination»: agent=Theme from water=Initial\_Location into air=Destination | | 3 | **is** | present | air | | | | | why *property* | tree rules | | 4 | **look** | present | a straw in your glass | | | | | | tree rules | | 5 | **break** | participle | a straw in your glass *not said here* | | | the surface | | | vn appear-48.1.1 «NP V PP.location»: agent=Theme at surface=Location | 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:021-mirrors-rainbows-and-the-blue-sky.lesson:4`. **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): no change. **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: [Mirrors, rainbows and the blue sky, 3](https://md.mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/3/) - next →: [Mirrors, rainbows and the blue sky, 6](https://md.mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/6/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/)