---
title: With no air in the way, a heavy thing and a light thing fall at the… — Alice's fall and her sizes: falling, the centre… · tree and pragmatics
description: With no air in the way, a heavy thing and a light thing fall at the same speed; an astronaut showed this on the Moon in 1971 by dropping a hammer and a feather, which landed together. Who acts: heavy thing, astronaut, hammer. A sentence of the lesson «Alice's fall and her sizes: falling, the centre 
---

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# Alice's fall and her sizes: falling, the centre of the Earth, giants and tiny people, sentence 8

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With no air in the way, a heavy thing and a light thing fall at the same speed; an astronaut showed this on the Moon in 1971 by dropping a hammer and a feather, which landed together.

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**Who acts:** heavy thing, astronaut, hammer · **What happens:** fall, show, drop, land · **To what, where:** same speed, this, Moon, hammer

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This is a sentence of the lesson «Alice's fall and her sizes: falling, the centre of the Earth, giants and tiny people» 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 (heavy thing, astronaut, hammer), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:041-alice-s-fall-and-sizes-falling-the-centre-of-the-earth-giants-and-tiny-people.lesson:8
# text = With no air in the way, a heavy thing and a light thing fall at the same speed; an astronaut showed this on the Moon in 1971 by dropping a hammer and a feather, which landed together.
# source = school lesson (ours)
# course = physics
# lesson = 041-alice-s-fall-and-sizes-falling-the-centre-of-the-earth-giants-and-tiny-people.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): R2-punct-next ×1, R7-rel-agree ×2
1	With	with	ADP	IN	_	3	case	_	_
2	no	no	DET	DT	PronType=Neg	3	det	_	_
3	air	air	NOUN	NN	Number=Sing	15	obl	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	way	way	NOUN	NN	Number=Sing	3	nmod	_	_
7	,	,	PUNCT	,	_	10	punct	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	heavy	heavy	ADJ	JJ	Degree=Pos	10	amod	_	_
10	thing	thing	NOUN	NN	Number=Sing	15	nsubj	_	_
11	and	and	CCONJ	CC	_	14	cc	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	light	light	ADJ	JJ	Degree=Pos	14	amod	_	Agree=R7-rel-agree|Haiku=14:compound|HaikuPos=NOUN:NN:Number=Sing
14	thing	thing	NOUN	NN	Number=Sing	10	conj	_	_
15	fall	fall	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
16	at	at	ADP	IN	_	19	case	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
18	same	same	ADJ	JJ	Degree=Pos	19	amod	_	_
19	speed	speed	NOUN	NN	Number=Sing	15	obl	_	_
20	;	;	PUNCT	,	_	23	punct	_	Agree=R2-punct-next|Haiku=15:punct
21	an	a	DET	DT	Definite=Ind|PronType=Art	22	det	_	_
22	astronaut	astronaut	NOUN	NN	Number=Sing	23	nsubj	_	_
23	showed	show	VERB	VBD	Mood=Ind|Tense=Past|VerbForm=Fin	15	parataxis	_	Agree=R7-rel-agree|Haiku=15:conj
24	this	this	PRON	DT	Number=Sing|PronType=Dem	23	obj	_	_
25	on	on	ADP	IN	_	27	case	_	_
26	the	the	DET	DT	Definite=Def|PronType=Art	27	det	_	_
27	Moon	Moon	PROPN	NNP	Number=Sing	23	obl	_	_
28	in	in	ADP	IN	_	29	case	_	_
29	1971	1971	NUM	CD	NumForm=Digit|NumType=Card	23	obl	_	_
30	by	by	SCONJ	IN	_	31	mark	_	_
31	dropping	drop	VERB	VBG	Tense=Pres|VerbForm=Part	23	advcl	_	_
32	a	a	DET	DT	Definite=Ind|PronType=Art	33	det	_	_
33	hammer	hammer	NOUN	NN	Number=Sing	31	obj	_	_
34	and	and	CCONJ	CC	_	36	cc	_	_
35	a	a	DET	DT	Definite=Ind|PronType=Art	36	det	_	_
36	feather	feather	NOUN	NN	Number=Sing	33	conj	_	_
37	,	,	PUNCT	,	_	39	punct	_	_
38	which	which	PRON	WDT	PronType=Rel	39	nsubj	_	_
39	landed	land	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	33	acl:relcl	_	_
40	together	together	ADV	RB	_	39	advmod	_	_
41	.	.	PUNCT	.	_	15	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fall** | present | a heavy thing and a light thing |  |  | the same speed |  | with no air in the way | vn occur-48.3 «NP V PP»: agent=Theme at speed=Location |
| 2 | **show** | past | a astronaut | this |  | the Moon |  | in 1971 | vn crane-40.3.2 «NP V NP PP.recipient PP.theme»: agent=Agent this=Patient in 1971=Topic |
| 3 | **drop** | gerund | a astronaut *not said here* | a hammer and a feather |  |  |  |  | vn put\_direction-9.4 «NP V NP»: agent=Agent hammer=Theme |
| 4 | **land** | past | a hammer and a feather |  |  |  |  | together *property* | vn pocket-9.10-1 «NP V»: agent=Theme |

<!-- .note -->
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:041-alice-s-fall-and-sizes-falling-the-centre-of-the-earth-giants-and-tiny-people.lesson:8`.

**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): R2-punct-next ×1, R7-rel-agree ×2. **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: [Alice's fall and her sizes: falling, t…, 7](https://md.mova.elamur.ai/free/en/corpora/school/physics/41-alice-s-fall-and-sizes-falling-the-centre-of-the-earth-giants-and-tiny-people/7/)
- next →: [Alice's fall and her sizes: falling, t…, 10](https://md.mova.elamur.ai/free/en/corpora/school/physics/41-alice-s-fall-and-sizes-falling-the-centre-of-the-earth-giants-and-tiny-people/10/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/41-alice-s-fall-and-sizes-falling-the-centre-of-the-earth-giants-and-tiny-people/)