---
title: We see an object when light bounces off it and enters our eyes. — Light, shadows and colours · tree and pragmatics
description: We see an object when light bounces off it and enters our eyes. Who acts: We, light. A sentence of the lesson «Light, shadows and colours» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Light, shadows and colours, sentence 5

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We see an object when light bounces off it and enters our eyes.

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**Who acts:** We, light · **What happens:** see, bounce off, enter · **To what, where:** object, eyes

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This is a sentence of the lesson «Light, 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 (We, light), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:053-light.lesson:5
# text = We see an object when light bounces off it and enters our eyes.
# source = school lesson (ours)
# course = world
# lesson = 053-light.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
1	We	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	2	nsubj	_	_
2	see	see	VERB	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
3	an	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	object	object	NOUN	NN	Number=Sing	2	obj	_	_
5	when	when	ADV	WRB	PronType=Int	7	advmod	_	_
6	light	light	NOUN	NN	Number=Sing	7	nsubj	_	_
7	bounces	bounce	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	Agree=R5-strong|Haiku=4:acl:relcl
8	off	off	ADP	IN	_	9	case	_	_
9	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	obl	_	_
10	and	and	CCONJ	CC	_	11	cc	_	_
11	enters	enter	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	conj	_	_
12	our	our	PRON	PRP$	Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs	13	nmod:poss	_	_
13	eyes	eye	NOUN	NNS	Number=Plur	11	obj	_	_
14	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | present | We | a object |  |  |  |  | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer object=Stimulus |
| 2 | **bounce off** | present | light | object |  |  |  |  | vn run-51.3.2-2 «NP V NP»: agent=Agent it=Theme |
| 3 | **enter** | present | light *not said here* | our eyes |  |  |  |  | vn escape-51.1-1-2 «NP V NP»: agent=Theme eye=Destination |

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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.

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**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:053-light.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. **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/).

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- ← previous: [Light, shadows and colours, 4](https://md.mova.elamur.ai/free/en/corpora/school/world/53-light/4/)
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