---
title: The sudden jerk as you fall asleep is a common, harmless muscle twit… — Sleep and dreams in people · tree and pragmatics
description: The sudden jerk as you fall asleep is a common, harmless muscle twitch, and nobody is sure why it happens. Who acts: you, sudden jerk, nobody, it. A sentence of the lesson «Sleep and dreams in people» of the biology course of Mova's primary school with its dependency tree and the pragmatics of every
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/363-sleep-and-dreams-in-people/15/)

<!-- 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/) / [Sleep and dreams in people](https://md.mova.elamur.ai/free/en/corpora/school/biology/363-sleep-and-dreams-in-people/) / 15

# Sleep and dreams in people, sentence 15

<!-- .ven lang=en -->
The sudden jerk as you fall asleep is a common, harmless muscle twitch, and nobody is sure why it happens.

<!-- .vintro -->
**Who acts:** you, sudden jerk, nobody, it · **What happens:** fall, be, happen · **To what, where:** sudden jerk, common harmless muscle twitch

<!-- .vabout -->
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 (you, sudden jerk, nobody, it), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:363-sleep-and-dreams-in-people.lesson:15
# text = The sudden jerk as you fall asleep is a common, harmless muscle twitch, and nobody is sure why it happens.
# source = school lesson (ours)
# course = biology
# lesson = 363-sleep-and-dreams-in-people.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 ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	sudden	sudden	ADJ	JJ	Degree=Pos	3	amod	_	_
3	jerk	jerk	NOUN	NN	Number=Sing	14	nsubj	_	_
4	as	as	SCONJ	IN	_	6	mark	_	_
5	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	_	_
6	fall	fall	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	3	acl	_	_
7	asleep	asleep	ADJ	JJ	Degree=Pos	6	xcomp	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	cop	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
10	common	common	ADJ	JJ	Degree=Pos	14	amod	_	_
11	,	,	PUNCT	,	_	10	punct	_	_
12	harmless	harmless	ADJ	JJ	Degree=Pos	14	amod	_	Agree=R5-strong|Haiku=13:amod
13	muscle	muscle	NOUN	NN	Number=Sing	14	compound	_	_
14	twitch	twitch	NOUN	NN	Number=Sing	0	root	_	_
15	,	,	PUNCT	,	_	19	punct	_	_
16	and	and	CCONJ	CC	_	19	cc	_	_
17	nobody	nobody	PRON	NN	Number=Sing|PronType=Neg	19	nsubj	_	_
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
19	sure	sure	ADJ	JJ	Degree=Pos	14	conj	_	_
20	why	why	ADV	WRB	PronType=Int	22	advmod	_	_
21	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	22	nsubj	_	_
22	happens	happen	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	ccomp	_	_
23	.	.	PUNCT	.	_	14	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 | **fall** | present | you | the sudden jerk *not said here* |  |  |  | asleep *property* | vn become-109.1-1 «NP V ADJ»: agent=Patient jerk=Result |
| 2 | **is a** | present | the sudden jerk | a common harmless muscle twitch |  |  |  |  | tree rules |
| 3 | **is** | present | nobody |  |  |  |  | sure *property* | tree rules |
| 4 | **happen** | present | it |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=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.

<!-- 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:363-sleep-and-dreams-in-people.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): R5-strong ×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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Sleep and dreams in people, 14](https://md.mova.elamur.ai/free/en/corpora/school/biology/363-sleep-and-dreams-in-people/14/)
- next →: [The body's rough side: burps, farts, s…, 0](https://md.mova.elamur.ai/free/en/corpora/school/biology/364-the-body-s-rough-side-burps-farts-snot-sneezes-hiccups-and-poo/0/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/363-sleep-and-dreams-in-people/)