---
title: Why does the Atacama Desert in Chile host so many telescopes? — Telescopes and light · tree and pragmatics
description: Why does the Atacama Desert in Chile host so many telescopes? Test 7 of lesson 27 «Telescopes and light» of the space 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 7 · Telescopes and light

<!-- .ven lang=en -->
Why does the Atacama Desert in Chile host so many telescopes?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** Desert host · **What happens:** be

<!-- .vabout -->
This is test 7 of lesson 27 «Telescopes and light» of the space 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/space/27-telescopes-and-light/#t7).

## The question {#question}

```conllu
# sent_id = question:space:27-telescopes-and-light:t7:1
# text = Why does the Atacama Desert in Chile host so many telescopes?
1	Why	why	ADV	WRB	PronType=Rel	0	root	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	Atacama	Atacama	PROPN	NNP	Number=Sing	5	compound	_	_
5	Desert	Desert	PROPN	NNP	Number=Sing	8	compound	_	_
6	in	in	ADP	IN	_	7	case	_	_
7	Chile	Chile	PROPN	NNP	Number=Sing	5	nmod	_	_
8	host	host	NOUN	NN	Number=Sing	1	nsubj	_	_
9	so	so	ADV	RB	_	10	advmod	_	_
10	many	many	ADJ	JJ	Degree=Pos	11	amod	_	_
11	telescopes	telescope	NOUN	NNS	Number=Plur	8	conj	_	SpaceAfter=No
12	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Desert host and many telescopes |  |  |  |  | why *property* | 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 {#o1}

<!-- .ven lang=en -->
It is the only place on Earth where stars can be seen

```conllu
# sent_id = question:space:27-telescopes-and-light:t7:o1:1
# text = It is the only place on Earth where stars can be seen
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	5	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|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	place	place	NOUN	NN	Number=Sing	0	root	_	_
6	on	on	ADP	IN	_	7	case	_	_
7	Earth	Earth	PROPN	NNP	Number=Sing	5	nmod	_	_
8	where	where	ADV	WRB	PronType=Rel	12	advmod	_	_
9	stars	star	NOUN	NNS	Number=Plur	12	nsubj:pass	_	_
10	can	can	AUX	MD	VerbForm=Fin	12	aux	_	_
11	be	be	AUX	VB	VerbForm=Inf	12	aux:pass	_	_
12	seen	see	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl:relcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | It | the only place |  | Earth |  |  | tree rules |
| 2 | **see** | can · passive |  | stars |  |  |  |  | vn comprehend-87.2-1-1 «NP V NP»: subject=Stimulus |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
It is high and very dry, so the sky is clear

```conllu
# sent_id = question:space:27-telescopes-and-light:t7:o2:1
# text = It is high and very dry, so the sky is clear
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	high	high	ADJ	JJ	Degree=Pos	0	root	_	_
4	and	and	CCONJ	CC	_	6	cc	_	_
5	very	very	ADV	RB	_	6	advmod	_	_
6	dry	dry	ADJ	JJ	Degree=Pos	3	conj	_	SpaceAfter=No
7	,	,	PUNCT	,	_	12	punct	_	_
8	so	so	ADV	RB	_	12	advmod	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	sky	sky	NOUN	NN	Number=Sing	12	nsubj	_	_
11	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	cop	_	_
12	clear	clear	ADJ	JJ	Degree=Pos	3	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | It |  |  |  |  | high *property* | tree rules |
| 2 | **be** |  |  |  |  |  |  |  | tree rules |
| 3 | **is** | present | the sky |  |  |  |  | clear *property* | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
It is the closest place on the Earth to the Moon

```conllu
# sent_id = question:space:27-telescopes-and-light:t7:o3:1
# text = It is the closest place on the Earth to the Moon
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	5	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	closest	close	ADJ	JJS	Degree=Sup	5	amod	_	_
5	place	place	NOUN	NN	Number=Sing	0	root	_	_
6	on	on	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	Earth	Earth	PROPN	NNP	Number=Sing	5	nmod	_	_
9	to	to	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	Moon	Moon	PROPN	NNP	Number=Sing	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | It | the closest place |  | the Earth |  | to the Moon | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
It never gets dark there, so they can work all day

```conllu
# sent_id = question:space:27-telescopes-and-light:t7:o4:1
# text = It never gets dark there, so they can work all day
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	never	never	ADV	RB	PronType=Neg	3	advmod	_	_
3	gets	get	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	dark	dark	ADJ	JJ	Degree=Pos	3	xcomp	_	_
5	there	there	ADV	RB	PronType=Dem	4	advmod	_	SpaceAfter=No
6	,	,	PUNCT	,	_	10	punct	_	_
7	so	so	ADV	RB	_	10	advmod	_	_
8	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	10	nsubj	_	_
9	can	can	AUX	MD	VerbForm=Fin	10	aux	_	_
10	work	work	VERB	VB	VerbForm=Inf	3	conj	_	_
11	all	all	DET	DT	PronType=Tot	12	det	_	_
12	day	day	NOUN	NN	Number=Sing	10	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **get** | present | It |  |  |  |  | dark *property* | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer |
| 2 | **work** | can | they |  |  |  | day |  | vn employment-95.3 «NP V»: agent=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.

<!-- /div -->

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- ← previous: [Telescopes and light, test 6](https://md.mova.elamur.ai/free/en/corpora/questions/space/27-telescopes-and-light/t6/)
- next →: [Telescopes and light, test 8](https://md.mova.elamur.ai/free/en/corpora/questions/space/27-telescopes-and-light/t8/)
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