---
title: Air pushes back on falling things, and it slows light, fluffy or fla… — Why things fall: the apple and the pull of the E… · tree and pragmatics
description: Air pushes back on falling things, and it slows light, fluffy or flat things far more than heavy, compact ones. Who acts: Air. A sentence of the lesson «Why things fall: the apple and the pull of the Earth» of the physics course of Mova's primary school with its dependency tree and the pragmatics of
---

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# Why things fall: the apple and the pull of the Earth, sentence 12

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Air pushes back on falling things, and it slows light, fluffy or flat things far more than heavy, compact ones.

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**Who acts:** Air · **What happens:** push back, fall, slow · **To what, where:** light

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This is a sentence of the lesson «Why things fall: the apple and the pull of the Earth» of the physics 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 (Air), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:001-why-things-fall.lesson:12
# text = Air pushes back on falling things, and it slows light, fluffy or flat things far more than heavy, compact ones.
# source = school lesson (ours)
# course = physics
# lesson = 001-why-things-fall.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, R7-rel-agree ×1
1	Air	air	NOUN	NN	Number=Sing	2	nsubj	_	_
2	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	back	back	ADV	RB	_	2	advmod	_	_
4	on	on	ADP	IN	_	6	case	_	_
5	falling	fall	VERB	VBG	VerbForm=Ger	6	amod	_	_
6	things	thing	NOUN	NNS	Number=Plur	2	obl	_	_
7	,	,	PUNCT	,	_	10	punct	_	_
8	and	and	CCONJ	CC	_	10	cc	_	_
9	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	10	nsubj	_	_
10	slows	slow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
11	light	light	NOUN	NN	Number=Sing	10	obj	_	_
12	,	,	PUNCT	,	_	13	punct	_	_
13	fluffy	fluffy	ADJ	JJ	Degree=Pos	11	conj	_	Agree=R7-rel-agree|Haiku=11:amod
14	or	or	CCONJ	CC	_	18	cc	_	_
15	flat	flat	ADJ	JJ	Degree=Pos	16	amod	_	_
16	things	thing	NOUN	NNS	Number=Plur	10	obj	_	Agree=R5-strong|Haiku=18:nsubj
17	far	far	ADV	RB	Degree=Pos	18	advmod	_	_
18	more	more	ADJ	JJR	Degree=Cmp	10	conj	_	_
19	than	than	ADP	IN	_	23	case	_	_
20	heavy	heavy	ADJ	JJ	Degree=Pos	23	amod	_	_
21	,	,	PUNCT	,	_	20	punct	_	_
22	compact	compact	ADJ	JJ	Degree=Pos	23	amod	_	_
23	ones	one	NOUN	NNS	Number=Plur	18	obl	_	_
24	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **push back** | present | Air |  |  |  |  | on falling things | vn push-12-1-1 «NP V PP-Conative»: agent=Agent on thing=Theme |
| 2 | **fall** | gerund |  |  |  |  |  |  | vn occur-48.3 «NP V»: agent=Theme |
| 3 | **slow** | present | air | light |  |  |  |  | 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:physics:001-why-things-fall.lesson:12`.

**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, 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/).

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