---
title: Dad buys cheap very dark sunglasses with no UV mark. Problem? — Sunshine, vitamin D and water · tree and pragmatics
description: Dad buys cheap very dark sunglasses with no UV mark. Problem? Test 4 · ★ of lesson 23 «Sunshine, vitamin D and water» of the medicine 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 4 · ★ · Sunshine, vitamin D and water

<!-- .ven lang=en -->
Dad buys cheap very dark sunglasses with no UV mark. Problem?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** Dad · **What happens:** buy · **To what, where:** cheap dark sunglasses

<!-- .vabout -->
This is test 4 · ★ of lesson 23 «Sunshine, vitamin D and water» of the medicine 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/medicine/23-sunshine-vitamin-d-and-water/#t4).

## The question {#question}

<!-- .note -->
*Sentence 1:* Dad buys cheap very dark sunglasses with no UV mark.

```conllu
# sent_id = question:medicine:23-sunshine-vitamin-d-and-water:t4:1
# text = Dad buys cheap very dark sunglasses with no UV mark.
1	Dad	dad	NOUN	NN	Number=Sing	2	nsubj	_	_
2	buys	buy	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	cheap	cheap	ADJ	JJ	Degree=Pos	6	amod	_	_
4	very	very	ADV	RB	_	5	advmod	_	_
5	dark	dark	ADJ	JJ	Degree=Pos	6	amod	_	_
6	sunglasses	sunglasses	NOUN	NNS	Number=Plur	2	obj	_	_
7	with	with	ADP	IN	_	10	case	_	_
8	no	no	DET	DT	PronType=Neg	10	det	_	_
9	UV	ultra-violet	NOUN	NN	Abbr=Yes|Number=Sing	10	compound	_	_
10	mark	mark	NOUN	NN	Number=Sing	2	obl	_	SpaceAfter=No
11	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **buy** | present | Dad | cheap dark sunglasses |  |  |  | with no UV mark | vn accept-77.1 «NP V NP»: agent=Agent sunglasses=Theme |

<!-- .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:* Problem?

```conllu
# sent_id = question:medicine:23-sunshine-vitamin-d-and-water:t4:2
# text = Problem?
1	Problem	problem	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	?	?	PUNCT	.	_	1	punct	_	_
```

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

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
No problem, darker is always better

```conllu
# sent_id = question:medicine:23-sunshine-vitamin-d-and-water:t4:o1:1
# text = No problem, darker is always better
1	No	no	DET	DT	PronType=Neg	2	det	_	_
2	problem	problem	NOUN	NN	Number=Sing	7	nsubj	_	SpaceAfter=No
3	,	,	PUNCT	,	_	2	punct	_	_
4	darker	dark	ADJ	JJR	Degree=Cmp	2	conj	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
6	always	always	ADV	RB	PronType=Tot	7	advmod	_	_
7	better	good	ADJ	JJR	Degree=Cmp	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | no problem |  |  |  |  | always, good *property* | tree rules |

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

<!-- .ven lang=en -->
Dark lenses without UV protection may not protect the eyes

```conllu
# sent_id = question:medicine:23-sunshine-vitamin-d-and-water:t4:o2:1
# text = Dark lenses without UV protection may not protect the eyes
1	Dark	dark	ADJ	JJ	Degree=Pos	2	amod	_	_
2	lenses	lens	NOUN	NNS	Number=Plur	8	nsubj	_	_
3	without	without	ADP	IN	_	5	case	_	_
4	UV	UV	PROPN	NNP	Number=Sing	5	compound	_	_
5	protection	protection	NOUN	NN	Number=Sing	2	nmod	_	_
6	may	may	AUX	MD	VerbForm=Fin	8	aux	_	_
7	not	not	PART	RB	Polarity=Neg	8	advmod	_	_
8	protect	protect	VERB	VB	VerbForm=Inf	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	eyes	eye	NOUN	NNS	Number=Plur	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **protect** | may | Dark lenses without UV protection | the eyes |  |  |  |  | vn defend-72.3 «NP V NP»: agent=Agent eye=Beneficiary |

### Option 3 {#o3}

<!-- .ven lang=en -->
They only matter in winter

```conllu
# sent_id = question:medicine:23-sunshine-vitamin-d-and-water:t4:o3:1
# text = They only matter in winter
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	_	_
2	only	only	ADV	RB	_	3	advmod	_	_
3	matter	matter	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	in	in	ADP	IN	_	5	case	_	_
5	winter	winter	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **matter** | present | They |  |  |  | winter |  | vn matter-91 «NP V»: agent=Stimulus |

### Option 4 {#o4}

<!-- .ven lang=en -->
They'll make eyesight sharper

```conllu
# sent_id = question:medicine:23-sunshine-vitamin-d-and-water:t4:o4:1
# text = They'll make eyesight sharper
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	_	SpaceAfter=No
2	'll	will	AUX	MD	VerbForm=Fin	3	aux	_	_
3	make	make	VERB	VB	VerbForm=Inf	0	root	_	_
4	eyesight	eyesight	NOUN	NN	Number=Sing	3	obj	_	_
5	sharper	sharp	ADJ	JJR	Degree=Cmp	3	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | future | They | eyesight |  |  |  | sharp *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset eyesight=Product |

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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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