---
title: Ultraviolet rays in sunlight damage skin cells and cause sunburn; su… — Staying healthy: germs, vaccines, sleep, food an… · tree and pragmatics
description: Ultraviolet rays in sunlight damage skin cells and cause sunburn; sunscreen blocks much of it but must be put on again after swimming, and you can burn on a cloudy day, because most ultraviolet rays pass through thin cloud. Who acts: Ultraviolet rays, sunscreen, you, most ultraviolet rays. A sentenc
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/72-staying-healthy/14/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [Staying healthy: germs, vaccines, slee…](https://md.mova.elamur.ai/free/en/corpora/school/biology/72-staying-healthy/) / 14

# Staying healthy: germs, vaccines, sleep, food and exercise, sentence 14

<!-- .ven lang=en -->
Ultraviolet rays in sunlight damage skin cells and cause sunburn; sunscreen blocks much of it but must be put on again after swimming, and you can burn on a cloudy day, because most ultraviolet rays pass through thin cloud.

<!-- .vintro -->
**Who acts:** Ultraviolet rays, sunscreen, you, most ultraviolet rays · **What happens:** damage, cause, block, put on, swim, burn · **To what, where:** skin cells, sunburn, much, thin cloud

<!-- .vabout -->
This is a sentence of the lesson «Staying healthy: germs, vaccines, sleep, food and exercise» of the biology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Ultraviolet rays, sunscreen, you, most ultraviolet rays), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:072-staying-healthy.lesson:14
# text = Ultraviolet rays in sunlight damage skin cells and cause sunburn; sunscreen blocks much of it but must be put on again after swimming, and you can burn on a cloudy day, because most ultraviolet rays pass through thin cloud.
# source = school lesson (ours)
# course = biology
# lesson = 072-staying-healthy.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R6-punct-agree ×1, R7-rel-agree ×1, R8-pos-agree ×2
1	Ultraviolet	ultraviolet	NOUN	NN	Number=Sing	2	compound	_	_
2	rays	ray	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	in	in	ADP	IN	_	4	case	_	_
4	sunlight	sunlight	NOUN	NN	Number=Sing	2	nmod	_	_
5	damage	damage	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	skin	skin	NOUN	NN	Number=Sing	7	compound	_	_
7	cells	cell	NOUN	NNS	Number=Plur	5	obj	_	_
8	and	and	CCONJ	CC	_	9	cc	_	_
9	cause	cause	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	Agree=R8-pos-agree|Haiku=5:conj|HaikuPos=VERB:VB:VerbForm=Inf
10	sunburn	sunburn	NOUN	NN	Number=Sing	9	obj	_	_
11	;	;	PUNCT	,	_	5	punct	_	_
12	sunscreen	sunscreen	NOUN	NN	Number=Sing	13	nsubj	_	_
13	blocks	block	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	_
14	much	much	ADJ	JJ	Degree=Pos	13	obj	_	Agree=R8-pos-agree|Haiku=13:obj|HaikuPos=PRON:NN:_
15	of	of	ADP	IN	_	16	case	_	_
16	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	nmod	_	_
17	but	but	CCONJ	CC	_	20	cc	_	_
18	must	must	AUX	MD	VerbForm=Fin	20	aux	_	_
19	be	be	AUX	VB	VerbForm=Inf	20	aux:pass	_	_
20	put	put	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	13	conj	_	_
21	on	on	ADP	RP	_	20	compound:prt	_	_
22	again	again	ADV	RB	_	20	advmod	_	_
23	after	after	SCONJ	IN	_	24	mark	_	_
24	swimming	swim	VERB	VBG	Tense=Pres|VerbForm=Part	20	advcl	_	_
25	,	,	PUNCT	,	_	29	punct	_	_
26	and	and	CCONJ	CC	_	29	cc	_	_
27	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	29	nsubj	_	_
28	can	can	AUX	MD	VerbForm=Fin	29	aux	_	_
29	burn	burn	VERB	VB	VerbForm=Inf	20	conj	_	_
30	on	on	ADP	IN	_	33	case	_	_
31	a	a	DET	DT	Definite=Ind|PronType=Art	33	det	_	_
32	cloudy	cloudy	ADJ	JJ	Degree=Pos	33	amod	_	_
33	day	day	NOUN	NN	Number=Sing	29	obl	_	_
34	,	,	PUNCT	,	_	39	punct	_	_
35	because	because	SCONJ	IN	_	39	mark	_	_
36	most	most	ADJ	JJS	Degree=Sup	38	amod	_	_
37	ultraviolet	ultraviolet	ADJ	JJ	Degree=Pos	38	amod	_	Agree=R7-rel-agree|Haiku=38:compound|HaikuPos=NOUN:NN:Number=Sing
38	rays	ray	NOUN	NNS	Number=Plur	39	nsubj	_	_
39	pass	pass	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	29	advcl	_	_
40	through	through	ADP	IN	_	42	case	_	_
41	thin	thin	ADJ	JJ	Degree=Pos	42	amod	_	_
42	cloud	cloud	NOUN	NN	Number=Sing	39	obl	_	_
43	.	.	PUNCT	.	_	5	punct	_	Agree=R6-punct-agree|Haiku=2:punct
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: changed act=assert

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **damage** | present | Ultraviolet rays in sunlight | skin cells |  |  |  |  | vn destroy-44 «NP V NP»: agent=Agent cell=Patient |
| 2 | **cause** | present | Ultraviolet rays in sunlight *not said here* | sunburn |  |  |  |  | vn engender-27.1-1 «NP V NP»: agent=Precondition sunburn=Patient |
| 3 | **block** | present | sunscreen | much of sunburn |  |  |  |  | vn forbid-64.4-1 «NP V NP»: agent=Causer much=Theme |
| 4 | **put on** | must · passive | sunscreen *not said here* |  |  |  | again |  | vn invest-13.5.4-1 «NP V PP» |
| 5 | **swim** | gerund | sunscreen *not said here* |  |  |  |  |  | vn run-51.3.2-1 «NP V»: agent=Theme |
| 6 | **burn** | can | you |  |  |  | day |  | vn light\_emission-43.1 «NP.location V PP.theme»: agent=Location |
| 7 | **pass** | present | most ultraviolet rays |  |  | thin cloud |  |  | vn occur-48.3-1 «NP V PP»: agent=Theme through cloud=Location |

<!-- .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.

<!-- div src -->

**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:biology:072-staying-healthy.lesson:14`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R6-punct-agree ×1, R7-rel-agree ×1, R8-pos-agree ×2. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

<!-- /div -->

<!-- pn -->
- ← previous: [Staying healthy: germs, vaccines, slee…, 13](https://md.mova.elamur.ai/free/en/corpora/school/biology/72-staying-healthy/13/)
- next →: [Staying healthy: germs, vaccines, slee…, 15](https://md.mova.elamur.ai/free/en/corpora/school/biology/72-staying-healthy/15/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/72-staying-healthy/)

