--- title: A mirror is so smooth that light bounces off it neatly, at the same… — Mirrors, rainbows and the blue sky · tree and pragmatics description: A mirror is so smooth that light bounces off it neatly, at the same angle it arrived, so the picture stays whole; crumpled foil bounces light every which way and shows no picture at all. Who acts: mirror, light, picture, crumpled foil. A sentence of the lesson «Mirrors, rainbows and the blue sky» 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/0/) [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/) / 0 # Mirrors, rainbows and the blue sky, sentence 0 A mirror is so smooth that light bounces off it neatly, at the same angle it arrived, so the picture stays whole; crumpled foil bounces light every which way and shows no picture at all. **Who acts:** mirror, light, picture, crumpled foil · **What happens:** be, bounce off, arrive, stay, crumple, bounce · **To what, where:** mirror, same angle, light, picture, all 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 (mirror, light, picture, crumpled foil), 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:0 # text = A mirror is so smooth that light bounces off it neatly, at the same angle it arrived, so the picture stays whole; crumpled foil bounces light every which way and shows no picture at all. # 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): R7-rel-agree ×1 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 mirror mirror NOUN NN Number=Sing 5 nsubj _ _ 3 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 cop _ _ 4 so so ADV RB _ 5 advmod _ _ 5 smooth smooth ADJ JJ Degree=Pos 0 root _ _ 6 that that SCONJ IN _ 8 mark _ _ 7 light light NOUN NN Number=Sing 8 nsubj _ _ 8 bounces bounce VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 ccomp _ _ 9 off off ADP IN _ 10 case _ _ 10 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 8 obl _ _ 11 neatly neatly ADV RB _ 8 advmod _ _ 12 , , PUNCT , _ 18 punct _ _ 13 at at ADP IN _ 16 case _ _ 14 the the DET DT Definite=Def|PronType=Art 16 det _ _ 15 same same ADJ JJ Degree=Pos 16 amod _ _ 16 angle angle NOUN NN Number=Sing 18 obl _ _ 17 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 18 nsubj _ _ 18 arrived arrive VERB VBD Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin 5 parataxis _ _ 19 , , PUNCT , _ 23 punct _ _ 20 so so ADV RB _ 23 advmod _ _ 21 the the DET DT Definite=Def|PronType=Art 22 det _ _ 22 picture picture NOUN NN Number=Sing 23 nsubj _ _ 23 stays stay VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 18 conj _ _ 24 whole whole ADJ JJ Degree=Pos 23 xcomp _ _ 25 ; ; PUNCT : _ 5 punct _ _ 26 crumpled crumple VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 27 amod _ _ 27 foil foil NOUN NN Number=Sing 28 nsubj _ _ 28 bounces bounce VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 parataxis _ _ 29 light light NOUN NN Number=Sing 28 obj _ _ 30 every every DET DT PronType=Tot 32 det _ _ 31 which which DET WDT PronType=Int 32 det _ _ 32 way way NOUN NN Number=Sing 28 obl _ Agree=R7-rel-agree|Haiku=28:nmod:unmarked 33 and and CCONJ CC _ 34 cc _ _ 34 shows show VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 28 conj _ _ 35 no no DET DT PronType=Neg 36 det _ _ 36 picture picture NOUN NN Number=Sing 34 obj _ _ 37 at at ADP IN _ 38 case _ _ 38 all all DET DT PronType=Tot 34 obl _ _ 39 . . PUNCT . _ 5 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | a mirror | | | | | smooth *property* | tree rules | | 2 | **bounce off** | present | light | mirror | | | | neatly *property* | vn run-51.3.2-2 «NP V NP»: agent=Agent it=Theme | | 3 | **arrive** | past | light | | | the same angle | | | vn escape-51.1-1 «NP V»: agent=Theme | | 4 | **stay** | present | the picture | | | | | whole *property* | vn exist-47.1 «NP V»: agent=Theme | | 5 | **crumple** | participle | | | | | | | vn bend-45.2 «NP.patient V»: agent=Patient | | 6 | **bounce** | present | crumpled foil | light | | | | every way *obl* | vn run-51.3.2-2 «NP V NP»: agent=Agent light=Agent | | 7 | **show** | present | crumpled foil *not said here* | no picture | | all | | | vn transfer\_mesg-37.1.1-1-1 «NP V NP.recipient»: agent=Agent picture=Recipient | 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:0`. **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): 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: [Light and shadows, 15](https://md.mova.elamur.ai/free/en/corpora/school/physics/20-light-and-shadows/15/) - next →: [Mirrors, rainbows and the blue sky, 1](https://md.mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/1/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/21-mirrors-rainbows-and-the-blue-sky/)