---
title: Me cousin says the sky's blue cos it reflects the sea. Is that right? — Mirrors, rainbows and the blue sky · tree and pragmatics
description: Me cousin says the sky's blue cos it reflects the sea. Is that right? Test 1 · ★ of lesson 21 «Mirrors, rainbows and the blue sky» of the physics 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 1 · ★ · Mirrors, rainbows and the blue sky

<!-- .ven lang=en -->
Me cousin says the sky's blue cos it reflects the sea. Is that right?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** Me cousin, cousin, that · **What happens:** say, reflect, be · **To what, where:** blue, sea · **Speech:** someone speaks here

<!-- .vabout -->
This is test 1 · ★ of lesson 21 «Mirrors, rainbows and the blue sky» of the physics 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/physics/21-mirrors-rainbows-and-the-blue-sky/#t1).

## The question {#question}

<!-- .note -->
*Sentence 1:* Me cousin says the sky's blue cos it reflects the sea.

```conllu
# sent_id = question:physics:21-mirrors-rainbows-and-the-blue-sky:t1:1
# text = Me cousin says the sky's blue cos it reflects the sea.
1	Me	I	PRON	PRP	Case=Acc|Number=Sing|Person=1|PronType=Prs	2	compound	_	_
2	cousin	cousin	NOUN	NN	Number=Sing	3	nsubj	_	_
3	says	say	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	sky	sky	NOUN	NN	Number=Sing	7	nmod:poss	_	SpaceAfter=No
6	's	's	PART	POS	_	5	case	_	_
7	blue	blue	ADJ	JJ	Degree=Pos	3	obj	_	_
8	cos	cos	SCONJ	IN	_	10	mark	_	_
9	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	10	nsubj	_	_
10	reflects	reflect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	sea	sea	NOUN	NN	Number=Sing	10	obj	_	SpaceAfter=No
13	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | present | Me cousin | the sky's blue |  |  |  |  | vn say-37.7-1-1 «NP V NP.topic»: agent=Agent blue=Topic |
| 2 | **reflect** | present | cousin | the sea |  |  |  |  | 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.

<!-- .note -->
*Sentence 2:* Is that right?

```conllu
# sent_id = question:physics:21-mirrors-rainbows-and-the-blue-sky:t1:2
# text = Is that right?
1	Is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
2	that	that	PRON	DT	Number=Sing|PronType=Dem	3	nsubj	_	_
3	right	right	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
4	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | that |  |  |  |  | right *property* | tree rules |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Yes, and over deserts the sky is yellow

```conllu
# sent_id = question:physics:21-mirrors-rainbows-and-the-blue-sky:t1:o1:1
# text = Yes, and over deserts the sky is yellow
1	Yes	yes	INTJ	UH	Polarity=Pos	5	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	over	over	ADP	IN	_	5	case	_	_
5	deserts	desert	NOUN	NNS	Number=Plur	0	root	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	sky	sky	NOUN	NN	Number=Sing	9	nsubj	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
9	yellow	yellow	ADJ	JJ	Degree=Pos	5	acl:relcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | the sky | deserts *not said here* |  |  |  | yellow *property* | tree rules |

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

<!-- .ven lang=en -->
No, the air scatters blue light more than other colours

```conllu
# sent_id = question:physics:21-mirrors-rainbows-and-the-blue-sky:t1:o2:1
# text = No, the air scatters blue light more than other colours
1	No	no	INTJ	UH	Polarity=Neg	5	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	air	air	NOUN	NN	Number=Sing	5	nsubj	_	_
5	scatters	scatter	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	blue	blue	ADJ	JJ	Degree=Pos	7	amod	_	_
7	light	light	NOUN	NN	Number=Sing	5	obj	_	_
8	more	more	ADV	RBR	Degree=Cmp	5	advmod	_	_
9	than	than	ADP	IN	_	11	case	_	_
10	other	other	ADJ	JJ	Degree=Pos	11	amod	_	_
11	colours	colour	NOUN	NNS	Number=Plur	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **scatter** | present | the air | blue light |  |  |  |  | vn spray-9.7-1 «NP V NP.theme»: agent=Agent light=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
No, the sky is blue because the space behind the air is blue

```conllu
# sent_id = question:physics:21-mirrors-rainbows-and-the-blue-sky:t1:o3:1
# text = No, the sky is blue because the space behind the air is blue
1	No	no	INTJ	UH	Polarity=Neg	6	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	sky	sky	NOUN	NN	Number=Sing	6	nsubj	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
6	blue	blue	ADJ	JJ	Degree=Pos	0	root	_	_
7	because	because	SCONJ	IN	_	14	mark	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	space	space	NOUN	NN	Number=Sing	14	nsubj	_	_
10	behind	behind	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	air	air	NOUN	NN	Number=Sing	9	nmod	_	_
13	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	cop	_	_
14	blue	blue	ADJ	JJ	Degree=Pos	6	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | the sky |  |  |  |  | blue *property* | tree rules |
| 2 | **is** | present | the space behind the air |  |  |  |  | blue *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Yes, the sea paints the sky blue

```conllu
# sent_id = question:physics:21-mirrors-rainbows-and-the-blue-sky:t1:o4:1
# text = Yes, the sea paints the sky blue
1	Yes	yes	INTJ	UH	Polarity=Pos	5	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	sea	sea	NOUN	NN	Number=Sing	5	nsubj	_	_
5	paints	paint	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	sky	sky	NOUN	NN	Number=Sing	8	compound	_	_
8	blue	blue	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **paint** | present | the sea | the sky blue |  |  |  |  | vn image\_impression-25.1 «NP V NP.destination»: agent=Agent blue=Destination |

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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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