---
title: A feather falls slowly on the Earth because the air pushes against it. — Gravity · tree and pragmatics
description: A feather falls slowly on the Earth because the air pushes against it. Who acts: feather, air. A sentence of the lesson «Gravity» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Gravity, sentence 13

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A feather falls slowly on the Earth because the air pushes against it.

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**Who acts:** feather, air · **What happens:** fall, push · **To what, where:** Earth

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This is a sentence of the lesson «Gravity» 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 (feather, air), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:006-gravity.lesson:13
# text = A feather falls slowly on the Earth because the air pushes against it.
# source = school lesson (ours)
# course = world
# lesson = 006-gravity.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	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	feather	feather	NOUN	NN	Number=Sing	3	nsubj	_	_
3	falls	fall	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	slowly	slowly	ADV	RB	_	3	advmod	_	_
5	on	on	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	Earth	Earth	PROPN	NNP	Number=Sing	3	obl	_	_
8	because	because	SCONJ	IN	_	11	mark	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	air	air	NOUN	NN	Number=Sing	11	nsubj	_	_
11	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
12	against	against	ADP	IN	_	13	case	_	_
13	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	obl	_	_
14	.	.	PUNCT	.	_	3	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 | **fall** | present | a feather |  |  | the Earth |  | slowly *property* | vn occur-48.3 «NP V PP»: agent=Theme on earth=Location |
| 2 | **push** | present | the air |  |  |  |  | against Earth | vn push-12-1-1 «NP V PP-Conative»: agent=Agent against it=Theme |

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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:006-gravity.lesson:13`.

**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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