--- title: A mirror reflects light like a ball bouncing off a wall: the light l… — Mirrors, shadows and colours · tree and pragmatics description: A mirror reflects light like a ball bouncing off a wall: the light leaves the mirror at the same angle as it arrived. Who acts: mirror, ball, light. A sentence of the lesson «Mirrors, shadows and colours» of the world course of Mova's primary school with its dependency tree and the pragmatics of eve --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/84-mirrors-shadows-colours/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/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / [Mirrors, shadows and colours](https://md.mova.elamur.ai/free/en/corpora/school/world/84-mirrors-shadows-colours/) / 0 # Mirrors, shadows and colours, sentence 0 A mirror reflects light like a ball bouncing off a wall: the light leaves the mirror at the same angle as it arrived. **Who acts:** mirror, ball, light · **What happens:** reflect, bounce off, leave, arrive · **To what, where:** light, wall, mirror, same angle This is a sentence of the lesson «Mirrors, shadows and colours» of the world 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, ball, light), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:world:084-mirrors-shadows-colours.lesson:0 # text = A mirror reflects light like a ball bouncing off a wall: the light leaves the mirror at the same angle as it arrived. # source = school lesson (ours) # course = world # lesson = 084-mirrors-shadows-colours.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 ×1 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 mirror mirror NOUN NN Number=Sing 3 nsubj _ _ 3 reflects reflect VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 light light NOUN NN Number=Sing 3 obj _ _ 5 like like ADP IN _ 7 case _ _ 6 a a DET DT Definite=Ind|PronType=Art 7 det _ _ 7 ball ball NOUN NN Number=Sing 3 obl _ Agree=R5-strong|Haiku=4:nmod 8 bouncing bounce VERB VBG Tense=Pres|VerbForm=Part 7 acl _ _ 9 off off ADP RP _ 8 compound:prt _ _ 10 a a DET DT Definite=Ind|PronType=Art 11 det _ _ 11 wall wall NOUN NN Number=Sing 8 obl _ Agree=R7-rel-agree|Haiku=8:obj 12 : : PUNCT : _ 15 punct _ _ 13 the the DET DT Definite=Def|PronType=Art 14 det _ _ 14 light light NOUN NN Number=Sing 15 nsubj _ _ 15 leaves leave VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 parataxis _ _ 16 the the DET DT Definite=Def|PronType=Art 17 det _ _ 17 mirror mirror NOUN NN Number=Sing 15 obj _ _ 18 at at ADP IN _ 21 case _ _ 19 the the DET DT Definite=Def|PronType=Art 21 det _ _ 20 same same ADJ JJ Degree=Pos 21 amod _ _ 21 angle angle NOUN NN Number=Sing 15 obl _ Agree=R5-strong|Haiku=17:nmod 22 as as SCONJ IN _ 24 mark _ _ 23 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 24 nsubj _ _ 24 arrived arrive VERB VBD Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin 15 advcl _ _ 25 . . PUNCT . _ 3 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **reflect** | present | a mirror | light | | | | like a ball | tree rules | | 2 | **bounce off** | gerund | a ball *not said here* | a wall | | | | | vn run-51.3.2-2 «NP V»: agent=Theme | | 3 | **leave** | present | the light | the mirror | | the same angle | | | vn keep-15.2 «NP V NP PP.location»: agent=Agent mirror=Theme at angle=Location | | 4 | **arrive** | past | light | | | | | | vn escape-51.1-1 «NP V»: agent=Theme | 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:world:084-mirrors-shadows-colours.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): R5-strong ×2, 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: [Floating and sinking: the push of water, 23](https://md.mova.elamur.ai/free/en/corpora/school/world/83-floating-and-sinking/23/) - next →: [Mirrors, shadows and colours, 1](https://md.mova.elamur.ai/free/en/corpora/school/world/84-mirrors-shadows-colours/1/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/84-mirrors-shadows-colours/)