---
title: The Moon is slowly drifting away from the Earth by about 3.8 centime… — The Moon · tree and pragmatics
description: The Moon is slowly drifting away from the Earth by about 3.8 centimetres a year. Who acts: Moon. A sentence of the lesson «The Moon» of the space course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# The Moon, sentence 15

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The Moon is slowly drifting away from the Earth by about 3.8 centimetres a year.

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**Who acts:** Moon · **What happens:** drift away · **To what, where:** Earth

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This is a sentence of the lesson «The Moon» of the space 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:space:006-the-moon.lesson:15
# text = The Moon is slowly drifting away from the Earth by about 3.8 centimetres a year.
# source = school lesson (ours)
# course = space
# lesson = 006-the-moon.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): R8-pos-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Moon	Moon	PROPN	NNP	Number=Sing	5	nsubj	_	Agree=R8-pos-agree|Haiku=5:nsubj|HaikuPos=NOUN:NN:Number=Sing
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux	_	_
4	slowly	slowly	ADV	RB	_	5	advmod	_	_
5	drifting	drift	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
6	away	away	ADV	RB	_	5	advmod	_	_
7	from	from	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	Earth	Earth	PROPN	NNP	Number=Sing	5	obl	_	_
10	by	by	ADP	IN	_	13	case	_	_
11	about	about	ADV	RB	_	12	advmod	_	_
12	3.8	3.8	NUM	CD	NumForm=Digit|NumType=Card	13	nummod	_	_
13	centimetres	centimetre	NOUN	NNS	Number=Plur	5	obl	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
15	year	year	NOUN	NN	Number=Sing	13	nmod:unmarked	_	_
16	.	.	PUNCT	.	_	5	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 | **drift away** | present · progressive | the Moon |  |  | the Earth |  | by 3.8 centimetres  a year; away, slowly *property* | vn roll-51.3.1 «NP.theme V PP.source PP.trajectory PP.destination»: agent=Theme from earth=Source by centimetre=Trajectory |

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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:space:006-the-moon.lesson:15`.

**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): R8-pos-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/).

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