---
title: Playing with a bright screen in a dark room can cause eye strain and… — Eyes, backs and thumbs · tree and pragmatics
description: Playing with a bright screen in a dark room can cause eye strain and headaches, so a light on helps. Who acts: Playing, light. A sentence of the lesson «Eyes, backs and thumbs» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Eyes, backs and thumbs, sentence 23

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Playing with a bright screen in a dark room can cause eye strain and headaches, so a light on helps.

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**Who acts:** Playing, light · **What happens:** play, cause, help · **To what, where:** dark room, eye strain

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This is a sentence of the lesson «Eyes, backs and thumbs» of the everyday 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 (Playing, light), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:420-eyes-backs-and-thumbs.lesson:23
# text = Playing with a bright screen in a dark room can cause eye strain and headaches, so a light on helps.
# source = school lesson (ours)
# course = everyday
# lesson = 420-eyes-backs-and-thumbs.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): R5-strong ×4, R6-punct-agree ×1
1	Playing	play	VERB	VBG	Tense=Pres|VerbForm=Part	11	csubj	_	Agree=R5-strong|Haiku=0:root
2	with	with	ADP	IN	_	5	case	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	bright	bright	ADJ	JJ	Degree=Pos	5	amod	_	_
5	screen	screen	NOUN	NN	Number=Sing	1	obl	_	_
6	in	in	SCONJ	IN	_	11	mark	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
8	dark	dark	ADJ	JJ	Degree=Pos	9	amod	_	_
9	room	room	NOUN	NN	Number=Sing	1	obl	_	Agree=R5-strong|Haiku=11:nsubj
10	can	can	AUX	MD	VerbForm=Fin	11	aux	_	_
11	cause	cause	VERB	VB	VerbForm=Inf	0	root	_	Agree=R5-strong|Haiku=1:advcl
12	eye	eye	NOUN	NN	Number=Sing	13	compound	_	_
13	strain	strain	NOUN	NN	Number=Sing	11	obj	_	_
14	and	and	CCONJ	CC	_	15	cc	_	_
15	headaches	headache	NOUN	NNS	Number=Plur	13	conj	_	_
16	,	,	PUNCT	,	_	19	punct	_	_
17	so	so	ADV	RB	_	21	advmod	_	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
19	light	light	NOUN	NN	Number=Sing	21	nsubj	_	_
20	on	on	ADV	RB	_	19	advmod	_	_
21	helps	help	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	parataxis	_	Agree=R5-strong|Haiku=1:parataxis
22	.	.	PUNCT	.	_	11	punct	_	Agree=R6-punct-agree|Haiku=1:punct
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **play** | gerund |  | a dark room |  |  |  | with a bright screen | vn play-114.2-1 «NP V PP.theme»: agent=Agent with screen=Theme |
| 2 | **cause** | can | Playing | eye strain and headaches |  |  |  |  | vn engender-27.1-1 «NP V NP»: agent=Precondition strain=Patient |
| 3 | **help** | present | a light |  |  |  |  |  | vn help-72.1-1-1 «NP V PP.theme»: agent=Agent |

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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.

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**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:everyday:420-eyes-backs-and-thumbs.lesson:23`.

**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): R5-strong ×4, R6-punct-agree ×1. **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/).

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