---
title: The Moon is not a source: it only reflects sunlight. — Light, shadows and colours · tree and pragmatics
description: The Moon is not a source: it only reflects sunlight. Who acts: Moon. 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 1

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The Moon is not a source: it only reflects sunlight.

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**Who acts:** Moon · **What happens:** not be, reflect · **To what, where:** source, sunlight

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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 (Moon), 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:1
# text = The Moon is not a source: it only reflects sunlight.
# 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): no change
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Moon	moon	NOUN	NN	Number=Sing	6	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
4	not	not	PART	RB	Polarity=Neg	6	advmod	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	source	source	NOUN	NN	Number=Sing	0	root	_	_
7	:	:	PUNCT	:	_	10	punct	_	_
8	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	10	nsubj	_	_
9	only	only	ADV	RB	_	10	advmod	_	_
10	reflects	reflect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	parataxis	_	_
11	sunlight	sunlight	NOUN	NN	Number=Sing	10	obj	_	_
12	.	.	PUNCT	.	_	6	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 | **not** **is a** | present | the Moon | a source |  |  |  |  | tree rules |
| 2 | **reflect** | present | Moon | sunlight |  |  |  |  | tree rules |

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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: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): 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/).

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