Sleep and the body clock, sentence 15
Bright screens at night make the brain release less melatonin, the body chemical that helps sleep.
Who acts: Bright screens, brain, body chemical · What happens: make, release, help · To what, where: brain, less melatonin, sleep
This is a sentence of the lesson «Sleep and the body clock» of the world 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, brain, body chemical), 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 | 5 make | nsubj |
| 3 | at | at | ADP | _ | 4 night | case |
| 4 | night | night | NOUN | Number=Sing | 2 screens | nmod |
| 5 | make | make | VERB | Mood=Ind Tense=Pres VerbForm=Fin | root | root |
| 6 | the | the | DET | Definite=Def PronType=Art | 7 brain | det |
| 7 | brain | brain | NOUN | Number=Sing | 5 make | obj |
| 8 | release | release | VERB | VerbForm=Inf | 5 make | xcomp |
| 9 | less | less | ADJ | Degree=Cmp | 10 melatonin | amod |
| 10 | melatonin | melatonin | NOUN | Number=Sing | 8 release | obj |
| 11 | , | , | PUNCT | _ | 14 chemical | punct |
| 12 | the | the | DET | Definite=Def PronType=Art | 14 chemical | det |
| 13 | body | body | NOUN | Number=Sing | 14 chemical | compound |
| 14 | chemical | chemical | NOUN | Number=Sing | 10 melatonin | appos |
| 15 | that | that | PRON | PronType=Rel | 16 helps | nsubj |
| 16 | helps | help | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 14 chemical | acl:relcl |
| 17 | sleep | sleep | NOUN | Number=Sing | 16 helps | obj |
| 18 | . | . | PUNCT | _ | 5 make | punct |
Pragmatics
No stored speech act for this sentence.
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | make | present | Bright screens at night | the brain | tree rules | ||||
| 2 | release | infinitive | the brain not said here | less melatonin | vn free-10.6.3-1 «NP V NP S_ING»: agent=Causer melatonin=Source | ||||
| 3 | help | present | the body chemical | sleep | vn help-72.1-1-1 «NP V NP»: agent=Agent sleep=Beneficiary |
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:world:127-sleep-and-the-body-clock.lesson:15.
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/world/127-sleep-and-the-body-clock/15/