---
title: Identify the principal reason for which the Milky Way is no longer v… — The Milky Way · tree and pragmatics
description: Identify the principal reason for which the Milky Way is no longer visible from most homes in Britain and the USA. Exam question 3 of lesson 23 «The Milky Way» 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 
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/e3/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Space](https://md.mova.elamur.ai/free/en/corpora/questions/space/) / [The Milky Way](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/) / e3

# Exam question 3 · The Milky Way

<!-- .ven lang=en -->
Identify the principal reason for which the Milky Way is no longer visible from most homes in Britain and the USA.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, Milky Way · **What happens:** identify, be · **To what, where:** principal reason, most homes

<!-- .vabout -->
This is exam question 3 of lesson 23 «The Milky Way» of the space course of Mova's primary school, asked in stiff, formal language. 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/23-the-milky-way/#e3).

## The question {#question}

```conllu
# sent_id = question:space:23-the-milky-way:e3:1
# text = Identify the principal reason for which the Milky Way is no longer visible from most homes in Britain and the USA.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	which	which	PRON	WDT	PronType=Rel	13	obl	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	Milky	milky	ADJ	JJ	Degree=Pos	9	amod	_	_
9	Way	Way	PROPN	NNP	Number=Sing	13	nsubj	_	_
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
11	no	no	ADV	RB	_	12	advmod	_	_
12	longer	long	ADV	RBR	Degree=Cmp	13	advmod	_	_
13	visible	visible	ADJ	JJ	Degree=Pos	4	acl	_	_
14	from	from	ADP	IN	_	16	case	_	_
15	most	most	ADJ	JJS	Degree=Sup	16	amod	_	_
16	homes	home	NOUN	NNS	Number=Plur	13	obl	_	_
17	in	in	ADP	IN	_	18	case	_	_
18	Britain	Britain	PROPN	NNP	Number=Sing	16	nmod	_	_
19	and	and	CCONJ	CC	_	21	cc	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	USA	USA	PROPN	NNP	Number=Sing	18	conj	_	SpaceAfter=No
22	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the principal reason |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent reason=Theme |
| 2 | **is** | present | the Milky Way |  |  | most homes in Britain and the USA |  | for the principal reason; long, visible *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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Light pollution

```conllu
# sent_id = question:space:23-the-milky-way:e3:o1:1
# text = Light pollution
1	Light	light	NOUN	NN	Number=Sing	2	compound	_	_
2	pollution	pollution	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
The recession of the galaxy from the Earth

```conllu
# sent_id = question:space:23-the-milky-way:e3:o2:1
# text = The recession of the galaxy from the Earth
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	recession	recession	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	galaxy	galaxy	NOUN	NN	Number=Sing	2	nmod	_	_
6	from	from	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	Earth	Earth	PROPN	NNP	Number=Sing	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **recede** |  | the galaxy from the Earth |  |  |  |  |  | nom recession «state intransitive»: of=agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
Atmospheric dust from volcanoes

```conllu
# sent_id = question:space:23-the-milky-way:e3:o3:1
# text = Atmospheric dust from volcanoes
1	Atmospheric	atmospheric	NOUN	NN	Number=Sing	2	compound	_	_
2	dust	dust	NOUN	NN	Number=Sing	0	root	_	_
3	from	from	ADP	IN	_	4	case	_	_
4	volcanoes	volcano	NOUN	NNS	Number=Plur	2	nmod	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The excessive brightness of the Moon

```conllu
# sent_id = question:space:23-the-milky-way:e3:o4:1
# text = The excessive brightness of the Moon
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	excessive	excessive	ADJ	JJ	Degree=Pos	3	amod	_	_
3	brightness	brightness	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	Moon	Moon	PROPN	NNP	Number=Sing	3	nmod	_	_
```

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

<!-- div src -->

**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 -->

<!-- pn -->
- ← previous: [The Milky Way, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/e2/)
- next →: [The Milky Way, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/e4/)
- ↑ back to [The Milky Way](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/)