Sleep and dreams in people, sentence 13

Bright screens and exciting games keep the brain alert and can delay melatonin, the sleepy hormone that rises when it gets dark.

Who acts: Bright screens, sleepy hormone, Sleep · What happens: keep, delay, rise, get · To what, where: brain, melatonin

This is a sentence of the lesson «Sleep and dreams in people» 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 (Bright screens, sleepy hormone, Sleep), what happens, when and where, as Mova's frames read it from the tree.

The tree

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Bright	bright	ADJ	Degree=Pos	2 screens	amod
2	screens	screen	NOUN	Number=Plur	6 keep	nsubj
3	and	and	CCONJ	_	5 games	cc
4	exciting	exciting	ADJ	Degree=Pos	5 games	amod
5	games	game	NOUN	Number=Plur	2 screens	conj
6	keep	keep	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
7	the	the	DET	Definite=Def PronType=Art	8 brain	det
8	brain	brain	NOUN	Number=Sing	6 keep	obj
9	alert	alert	ADJ	Degree=Pos	6 keep	xcomp
10	and	and	CCONJ	_	12 delay	cc
11	can	can	AUX	VerbForm=Fin	12 delay	aux
12	delay	delay	VERB	VerbForm=Inf	6 keep	conj
13	melatonin	melatonin	NOUN	Number=Sing	12 delay	obj
14	,	,	PUNCT	_	17 hormone	punct
15	the	the	DET	Definite=Def PronType=Art	17 hormone	det
16	sleepy	sleepy	ADJ	Degree=Pos	17 hormone	amod
17	hormone	hormone	NOUN	Number=Sing	13 melatonin	appos
18	that	that	PRON	PronType=Rel	19 rises	nsubj
19	rises	rise	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	17 hormone	acl:relcl
20	when	when	SCONJ	_	22 gets	mark
21	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	22 gets	nsubj
22	gets	get	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	19 rises	advcl
23	dark	dark	ADJ	Degree=Pos	22 gets	xcomp
24	.	.	PUNCT	_	6 keep	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	other	roles by
1	keep	present	Bright screens and exciting games	the brain	alert property	vn keep-15.2 «NP V NP»: agent=Agent brain=Theme
2	delay	can	Bright screens and exciting games not said here	melatonin		vn delay-53.3-1-1 «NP V»: agent=Agent melatonin=Source
3	rise	present	the sleepy hormone			vn assuming_position-50 «NP V»: agent=Agent
4	get	present	Sleep		dark property	vn comprehend-87.2-1 «NP V S_ING»: agent=Experiencer

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.

Licence: CC 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:363-sleep-and-dreams-in-people.lesson:13.

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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/biology/363-sleep-and-dreams-in-people/13/