---
title: Identify the principal reason for which the planets Uranus and Neptu… — Uranus and Neptune · tree and pragmatics
description: Identify the principal reason for which the planets Uranus and Neptune present a blue colouration. Exam question 1 of lesson 14 «Uranus and Neptune» 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 1 · Uranus and Neptune

<!-- .ven lang=en -->
Identify the principal reason for which the planets Uranus and Neptune present a blue colouration.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you, planets · **What happens:** identify, present · **To what, where:** principal reason, blue colouration

<!-- .vabout -->
This is exam question 1 of lesson 14 «Uranus and Neptune» 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/14-uranus-and-neptune/#e1).

## The question {#question}

```conllu
# sent_id = question:space:14-uranus-and-neptune:e1:1
# text = Identify the principal reason for which the planets Uranus and Neptune present a blue colouration.
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	12	obl	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	planets	planet	NOUN	NNS	Number=Plur	12	nsubj	_	_
9	Uranus	Uranus	PROPN	NNP	Number=Sing	8	appos	_	_
10	and	and	CCONJ	CC	_	11	cc	_	_
11	Neptune	Neptune	PROPN	NNP	Number=Sing	9	conj	_	_
12	present	present	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	acl:relcl	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
14	blue	blue	ADJ	JJ	Degree=Pos	15	amod	_	_
15	colouration	colouration	NOUN	NN	Number=Sing	12	obj	_	SpaceAfter=No
16	.	.	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 | **present** | present | the planets | a blue colouration |  |  |  | for the principal reason | vn fulfilling-13.4.1 «NP V NP PP.recipient»: agent=Agent colouration=Theme for which=Recipient |

<!-- .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 -->
The reflection of sunlight from vast oceans of liquid water

```conllu
# sent_id = question:space:14-uranus-and-neptune:e1:o1:1
# text = The reflection of sunlight from vast oceans of liquid water
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	reflection	reflection	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	sunlight	sunlight	NOUN	NN	Number=Sing	2	nmod	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	vast	vast	ADJ	JJ	Degree=Pos	7	amod	_	_
7	oceans	ocean	NOUN	NNS	Number=Plur	2	nmod	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	liquid	liquid	ADJ	JJ	Degree=Pos	10	amod	_	_
10	water	water	NOUN	NN	Number=Sing	7	nmod	_	_
```

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

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

<!-- .ven lang=en -->
The absorption of red light by atmospheric methane

```conllu
# sent_id = question:space:14-uranus-and-neptune:e1:o2:1
# text = The absorption of red light by atmospheric methane
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	absorption	absorption	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	red	red	ADJ	JJ	Degree=Pos	5	amod	_	_
5	light	light	NOUN	NN	Number=Sing	2	nmod	_	_
6	by	by	ADP	IN	_	8	case	_	_
7	atmospheric	atmospheric	NOUN	NN	Number=Sing	8	compound	_	_
8	methane	methane	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **absorb** |  | atmospheric methane | red light |  |  |  |  | nom absorption «process transitive»: of=patient by=agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
Their exceptionally high surface temperatures

```conllu
# sent_id = question:space:14-uranus-and-neptune:e1:o3:1
# text = Their exceptionally high surface temperatures
1	Their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
2	exceptionally	exceptionally	ADV	RB	_	3	advmod	_	_
3	high	high	ADJ	JJ	Degree=Pos	5	amod	_	_
4	surface	surface	NOUN	NN	Number=Sing	5	compound	_	_
5	temperatures	temperature	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The reflection of light from the Earth

```conllu
# sent_id = question:space:14-uranus-and-neptune:e1:o4:1
# text = The reflection of light from the Earth
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	reflection	reflection	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	light	light	NOUN	NN	Number=Sing	2	nmod	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	Earth	Earth	PROPN	NNP	Number=Sing	2	nmod	_	_
```

<!-- .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: [Uranus and Neptune, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/space/14-uranus-and-neptune/t11/)
- next →: [Uranus and Neptune, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/space/14-uranus-and-neptune/e2/)
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