---
title: "If atoms are mostly empty space, why can't I walk through the wall,… — What is everything made of? · tree and pragmatics
description: "If atoms are mostly empty space, why can't I walk through the wall, huh?" Best answer? Test 3 of lesson 1 «What is everything made of?» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 3 · What is everything made of?

<!-- .ven lang=en -->
"If atoms are mostly empty space, why can't I walk through the wall, huh?" Best answer?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 3 · wrong ✗ · **Who acts:** atoms, I · **What happens:** be, not walk · **To what, where:** empty space, wall

<!-- .vabout -->
This is test 3 of lesson 1 «What is everything made of?» of the chemistry course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/1-what-is-everything-made-of/#t3).

## The question {#question}

<!-- .note -->
*Sentence 1:* "If atoms are mostly empty space, why can't I walk through the wall, huh?"

```conllu
# sent_id = question:chemistry:1-what-is-everything-made-of:t3:1
# text = "If atoms are mostly empty space, why can't I walk through the wall, huh?"
1	"	"	PUNCT	``	_	7	punct	_	SpaceAfter=No
2	If	if	SCONJ	IN	_	3	mark	_	_
3	atoms	atom	NOUN	NNS	Number=Plur	7	nsubj	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
5	mostly	mostly	ADV	RB	_	7	advmod	_	_
6	empty	empty	ADJ	JJ	Degree=Pos	7	amod	_	_
7	space	space	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
8	,	,	PUNCT	,	_	13	punct	_	_
9	why	why	ADV	WRB	PronType=Int	13	advmod	_	_
10	ca	can	AUX	MD	VerbForm=Fin	13	aux	_	SpaceAfter=No
11	n't	not	PART	RB	Polarity=Neg	13	advmod	_	_
12	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	13	nsubj	_	_
13	walk	walk	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
14	through	through	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	wall	wall	NOUN	NN	Number=Sing	13	obl	_	SpaceAfter=No
17	,	,	PUNCT	,	_	18	punct	_	_
18	huh	huh	INTJ	UH	_	13	discourse	_	SpaceAfter=No
19	?	?	PUNCT	.	_	7	punct	_	SpaceAfter=No
20	"	"	PUNCT	''	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** *in a quote* | present | atoms | empty space |  |  |  | mostly *property* | tree rules |
| 2 | **not** **walk** *in a quote* | can | I |  |  | the wall |  |  | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme through wall=Trajectory |

<!-- .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.

<!-- .note -->
*Sentence 2:* Best answer?

```conllu
# sent_id = question:chemistry:1-what-is-everything-made-of:t3:2
# text = Best answer?
1	Best	good	ADJ	JJS	Degree=Sup	2	amod	_	_
2	answer	answer	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
3	?	?	PUNCT	.	_	2	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
The empty space is filled with glue

```conllu
# sent_id = question:chemistry:1-what-is-everything-made-of:t3:o1:1
# text = The empty space is filled with glue
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	empty	empty	ADJ	JJ	Degree=Pos	3	amod	_	_
3	space	space	NOUN	NN	Number=Sing	5	nsubj:pass	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux:pass	_	_
5	filled	fill	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	with	with	ADP	IN	_	7	case	_	_
7	glue	glue	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fill** | present · passive |  | the empty space |  |  |  | with glue | vn other\_cos-45.4 «NP V NP PP.instrument»: subject=Patient with glue=Instrument |

### Option 2 {#o2}

<!-- .ven lang=en -->
You could, if you ran at it fast enough and slipped between them

```conllu
# sent_id = question:chemistry:1-what-is-everything-made-of:t3:o2:1
# text = You could, if you ran at it fast enough and slipped between them
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	_	_
2	could	could	AUX	MD	VerbForm=Fin	6	aux	_	SpaceAfter=No
3	,	,	PUNCT	,	_	6	punct	_	_
4	if	if	SCONJ	IN	_	6	mark	_	_
5	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	_	_
6	ran	run	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
7	at	at	ADP	IN	_	8	case	_	_
8	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	obl	_	_
9	fast	fast	ADV	RB	Degree=Pos	6	advmod	_	_
10	enough	enough	ADV	RB	_	6	advmod	_	_
11	and	and	CCONJ	CC	_	12	cc	_	_
12	slipped	slip	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	conj	_	_
13	between	between	ADP	IN	_	14	case	_	_
14	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	12	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **run** | could | You |  |  | it |  | enough, fast *property* | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme at it=Trajectory |
| 2 | **slip** | past | You *not said here* |  |  |  |  | between them *= they* | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Electrons in you and the wall push each other away hard

```conllu
# sent_id = question:chemistry:1-what-is-everything-made-of:t3:o3:1
# text = Electrons in you and the wall push each other away hard
1	Electrons	electron	NOUN	NNS	Number=Plur	7	nsubj	_	_
2	in	in	ADP	IN	_	3	case	_	_
3	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	1	nmod	_	_
4	and	and	CCONJ	CC	_	6	cc	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	wall	wall	NOUN	NN	Number=Sing	3	conj	_	_
7	push	push	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	each	each	DET	DT	ExtPos=PRON|PronType=Rcp	7	obj	_	_
9	other	other	ADJ	JJ	Degree=Pos	8	fixed	_	_
10	away	away	ADV	RB	_	7	advmod	_	_
11	hard	hard	ADV	RB	Degree=Pos	7	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **push away** | present | Electrons in you | each |  |  |  | away, hard *property* | vn carry-11.4-1-1 «NP V NP»: agent=Agent each=Theme |

### Option 4 · ← Mova's choice {#o4}

<!-- .ven lang=en -->
Walls are the only thing not made of atoms

```conllu
# sent_id = question:chemistry:1-what-is-everything-made-of:t3:o4:1
# text = Walls are the only thing not made of atoms
1	Walls	wall	NOUN	NNS	Number=Plur	5	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	only	only	ADJ	JJ	Degree=Pos	5	amod	_	_
5	thing	thing	NOUN	NN	Number=Sing	0	root	_	_
6	not	not	PART	RB	Polarity=Neg	7	advmod	_	_
7	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	atoms	atom	NOUN	NNS	Number=Plur	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Walls | the only thing |  |  |  |  | tree rules |
| 2 | **not** **make** | participle |  | the only thing *not said here* |  |  |  | of atoms | vn build-26.1-1 «NP.asset V NP»: agent=Asset |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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