---
title: Why is it not true that there is a «dark side of the Moon» that neve… — Thinking like an astronomer · tree and pragmatics
description: Why is it not true that there is a «dark side of the Moon» that never sees the Sun? Test 6 · ★★★ of lesson 10 «Thinking like an astronomer» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 6 · ★★★ · Thinking like an astronomer

<!-- .ven lang=en -->
Why is it not true that there is a «dark side of the Moon» that never sees the Sun?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** it, dark side · **What happens:** not be, be, not see · **To what, where:** dark side

<!-- .vabout -->
This is test 6 · ★★★ of lesson 10 «Thinking like an astronomer» of the world 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/world/10-reasoning-about-space/#t6).

## The question {#question}

```conllu
# sent_id = question:world:10-reasoning-about-space:t6:1
# text = Why is it not true that there is a «dark side of the Moon» that never sees the Sun?
1	Why	why	ADV	WRB	PronType=Int	5	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	5	nsubj	_	_
4	not	not	PART	RB	Polarity=Neg	5	advmod	_	_
5	true	true	ADJ	JJ	Degree=Pos	0	root	_	_
6	that	that	SCONJ	IN	_	8	mark	_	_
7	there	there	PRON	EX	PronType=Dem	8	expl	_	_
8	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	advcl	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
10	«	«	PUNCT	``	_	12	punct	_	SpaceAfter=No
11	dark	dark	ADJ	JJ	Degree=Pos	12	amod	_	_
12	side	side	NOUN	NN	Number=Sing	8	nsubj	_	_
13	of	of	ADP	IN	_	15	case	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
15	Moon	Moon	PROPN	NNP	Number=Sing	12	nmod	_	SpaceAfter=No
16	»	»	PUNCT	''	_	15	punct	_	_
17	that	that	PRON	WDT	PronType=Rel	19	obj	_	_
18	never	never	ADV	RB	PronType=Neg	19	advmod	_	_
19	sees	see	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	acl:relcl	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	Sun	Sun	PROPN	NNP	Number=Sing	19	obj	_	SpaceAfter=No
22	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **is** | present | it |  |  |  |  | true *property* | tree rules |
| 2 | **be** | present | a dark side of the Moon |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |
| 3 | **not** **see** | present |  | a dark side of the Moon |  |  |  |  | tree rules |

<!-- .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.

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Every side of the Moon faces the Sun at some time each month

```conllu
# sent_id = question:world:10-reasoning-about-space:t6:o1:1
# text = Every side of the Moon faces the Sun at some time each month
1	Every	every	DET	DT	PronType=Tot	2	det	_	_
2	side	side	NOUN	NN	Number=Sing	6	nsubj	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	Moon	Moon	PROPN	NNP	Number=Sing	2	nmod	_	_
6	faces	face	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	Sun	Sun	PROPN	NNP	Number=Sing	6	obj	_	_
9	at	at	ADP	IN	_	11	case	_	_
10	some	some	DET	DT	PronType=Ind	11	det	_	_
11	time	time	NOUN	NN	Number=Sing	6	obl	_	_
12	each	each	DET	DT	PronType=Tot	13	det	_	_
13	month	month	NOUN	NN	Number=Sing	6	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **face** | present | every side of the Moon |  | the Sun |  | month; time |  | vn fill-9.8-1 «NP V NP»: agent=Theme sun=Destination |

### Option 2 {#o2}

<!-- .ven lang=en -->
The Moon makes its own light on the far side

```conllu
# sent_id = question:world:10-reasoning-about-space:t6:o2:1
# text = The Moon makes its own light on the far side
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Moon	Moon	PROPN	NNP	Number=Sing	3	nsubj	_	_
3	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
5	own	own	ADJ	JJ	Degree=Pos	6	amod	_	_
6	light	light	NOUN	NN	Number=Sing	3	obj	_	_
7	on	on	ADP	IN	_	10	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
9	far	far	ADJ	JJ	Degree=Pos	10	amod	_	_
10	side	side	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | the Moon | Moon's own light |  | the far side |  |  | vn build-26.1-1 «NP V NP»: agent=Agent light=Product |
| 2 | **light** |  | Moon |  |  |  |  |  | nom light «phenomenon transitive»: poss=agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
Mirrors on the Moon reflect light there

```conllu
# sent_id = question:world:10-reasoning-about-space:t6:o3:1
# text = Mirrors on the Moon reflect light there
1	Mirrors	mirror	NOUN	NNS	Number=Plur	5	nsubj	_	_
2	on	on	ADP	IN	_	4	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	Moon	Moon	PROPN	NNP	Number=Sing	1	nmod	_	_
5	reflect	reflect	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	light	light	NOUN	NN	Number=Sing	5	obj	_	_
7	there	there	ADV	RB	PronType=Dem	5	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **reflect** | present | Mirrors on the Moon | light |  | there |  |  | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
The Earth lights up the whole far side with the glow of its big cities

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:world:10-reasoning-about-space:t6:o4:1
# text = The Earth lights up the whole far side with the glow of its big cities
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Earth	Earth	PROPN	NNP	Number=Sing	3	nsubj	_	_
3	lights	light	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	up	up	ADP	RP	_	3	compound:prt	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
6	whole	whole	ADJ	JJ	Degree=Pos	8	amod	_	_
7	far	far	ADJ	JJ	Degree=Pos	8	amod	_	_
8	side	side	NOUN	NN	Number=Sing	3	obl:unmarked	_	_
9	with	with	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	glow	glow	NOUN	NN	Number=Sing	3	obl	_	_
12	of	of	ADP	IN	_	15	case	_	_
13	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	15	nmod:poss	_	_
14	big	big	ADJ	JJ	Degree=Pos	15	amod	_	_
15	cities	city	NOUN	NNS	Number=Plur	11	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **light up** | present | the Earth | the whole far side |  |  |  | with the glow of Earth's big cities | vn preparing-26.3-1 «NP V NP»: agent=Agent with glow=Material |
| 2 | **glow** |  | Earth's big cities |  |  |  |  |  | nom glow «state intransitive»: of=agent |

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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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