---
title: Bright screens keep your brain awake, which is why a book or calm so… — Screens, sleep, fairness and differences · tree and pragmatics
description: Bright screens keep your brain awake, which is why a book or calm sounds work better at bedtime. Who acts: Bright screens, book. A sentence of the lesson «Screens, sleep, fairness and differences» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every cl
---

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# Screens, sleep, fairness and differences, sentence 1

<!-- .ven lang=en -->
Bright screens keep your brain awake, which is why a book or calm sounds work better at bedtime.

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**Who acts:** Bright screens, book · **What happens:** keep, be, work · **To what, where:** brain

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This is a sentence of the lesson «Screens, sleep, fairness and differences» 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 (Bright screens, book), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:103-screens-fairness-and-differences.lesson:1
# text = Bright screens keep your brain awake, which is why a book or calm sounds work better at bedtime.
# source = school lesson (ours)
# course = everyday
# lesson = 103-screens-fairness-and-differences.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): no change
1	Bright	bright	ADJ	JJ	Degree=Pos	2	amod	_	_
2	screens	screen	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	keep	keep	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
5	brain	brain	NOUN	NN	Number=Sing	3	obj	_	_
6	awake	awake	ADJ	JJ	Degree=Pos	3	xcomp	_	_
7	,	,	PUNCT	,	_	10	punct	_	_
8	which	which	PRON	WDT	PronType=Rel	10	nsubj	_	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	_
10	why	why	ADV	WRB	PronType=Int	3	parataxis	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	book	book	NOUN	NN	Number=Sing	16	nsubj	_	_
13	or	or	CCONJ	CC	_	15	cc	_	_
14	calm	calm	ADJ	JJ	Degree=Pos	15	amod	_	_
15	sounds	sound	NOUN	NNS	Number=Plur	12	conj	_	_
16	work	work	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	ccomp	_	_
17	better	well	ADV	RBR	Degree=Cmp	16	advmod	_	_
18	at	at	ADP	IN	_	19	case	_	_
19	bedtime	bedtime	NOUN	NN	Number=Sing	16	obl	_	_
20	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present | Bright screens | your brain |  |  |  | awake *property* | vn keep-15.2 «NP V NP»: agent=Agent brain=Theme |
| 2 | **is** | present |  |  |  |  |  | why *property* | tree rules |
| 3 | **work** | present | a book or calm sounds |  |  |  |  | at bedtime; well *property* | vn employment-95.3 «NP V PP.theme»: agent=Agent at bedtime=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.

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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:103-screens-fairness-and-differences.lesson:1`.

**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): no change. **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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- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/everyday/103-screens-fairness-and-differences/)