---
title: Ascertain the approximate distance of the Sun from the centre of the… — The Milky Way · tree and pragmatics
description: Ascertain the approximate distance of the Sun from the centre of the galaxy. Exam question 2 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 wrong.
---

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# Exam question 2 · The Milky Way

<!-- .ven lang=en -->
Ascertain the approximate distance of the Sun from the centre of the galaxy.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** ascertain · **To what, where:** approximate distance, centre

<!-- .vabout -->
This is exam question 2 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/#e2).

## The question {#question}

```conllu
# sent_id = question:space:23-the-milky-way:e2:1
# text = Ascertain the approximate distance of the Sun from the centre of the galaxy.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	approximate	approximate	ADJ	JJ	Degree=Pos	4	amod	_	_
4	distance	distance	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	Sun	Sun	PROPN	NNP	Number=Sing	4	nmod	_	_
8	from	from	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	centre	centre	NOUN	NN	Number=Sing	4	nmod	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	galaxy	galaxy	NOUN	NN	Number=Sing	10	nmod	_	SpaceAfter=No
14	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the approximate distance of the Sun |  | the centre of the galaxy |  |  | vn discover-84 «NP V NP»: agent=Agent distance=Topic |

<!-- .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 -->
About one hundred light years

```conllu
# sent_id = question:space:23-the-milky-way:e2:o1:1
# text = About one hundred light years
1	About	about	ADV	RB	_	3	advmod	_	_
2	one	one	NUM	CD	NumForm=Word|NumType=Card	3	compound	_	_
3	hundred	hundred	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
4	light	light	NOUN	NN	Number=Sing	5	compound	_	_
5	years	year	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
About one hundred thousand light years

```conllu
# sent_id = question:space:23-the-milky-way:e2:o2:1
# text = About one hundred thousand light years
1	About	about	ADV	RB	_	4	advmod	_	_
2	one	one	NUM	CD	NumForm=Word|NumType=Card	3	compound	_	_
3	hundred	hundred	NUM	CD	NumForm=Word|NumType=Card	4	compound	_	_
4	thousand	thousand	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
5	light	light	NOUN	NN	Number=Sing	6	compound	_	_
6	years	year	NOUN	NNS	Number=Plur	0	root	_	_
```

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

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

<!-- .ven lang=en -->
About twenty-six thousand light years

```conllu
# sent_id = question:space:23-the-milky-way:e2:o3:1
# text = About twenty-six thousand light years
1	About	about	ADV	RB	_	4	advmod	_	_
2	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	4	compound	_	SpaceAfter=No
3	-	-	PUNCT	HYPH	_	2	punct	_	SpaceAfter=No
4	six	six	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	thousand	thousand	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
6	light	light	NOUN	NN	Number=Sing	7	compound	_	_
7	years	year	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
About one astronomical unit

```conllu
# sent_id = question:space:23-the-milky-way:e2:o4:1
# text = About one astronomical unit
1	About	about	ADV	RB	_	2	advmod	_	_
2	one	one	NUM	CD	NumForm=Word|NumType=Card	4	nummod	_	_
3	astronomical	astronomical	ADJ	JJ	Degree=Pos	4	amod	_	_
4	unit	unit	NOUN	NN	Number=Sing	0	root	_	_
```

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

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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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- ← previous: [The Milky Way, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/e1/)
- next →: [The Milky Way, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/e3/)
- ↑ back to [The Milky Way](https://md.mova.elamur.ai/free/en/corpora/questions/space/23-the-milky-way/)