---
title: It is asleep, but only with half its brain: the other half stays awa… — How animals sleep: half-asleep dolphins, standin… · tree and pragmatics
description: It is asleep, but only with half its brain: the other half stays awake to steer, come up to breathe and watch for danger. Who acts: It, other half. A sentence of the lesson «How animals sleep: half-asleep dolphins, standing horses, short-sleeping giraffes and birds that nap in the air» of the biolog
---

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# How animals sleep: half-asleep dolphins, standing horses, short-sleeping giraffes and birds that nap in the air, sentence 1

<!-- .ven lang=en -->
It is asleep, but only with half its brain: the other half stays awake to steer, come up to breathe and watch for danger.

<!-- .vintro -->
**Who acts:** It, other half · **What happens:** be, stay, steer, come up, breathe, watch

<!-- .vabout -->
This is a sentence of the lesson «How animals sleep: half-asleep dolphins, standing horses, short-sleeping giraffes and birds that nap in the air» 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 (It, other half), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:390-how-animals-sleep-half-asleep-dolphins-standing-horses-short-sleeping-giraffes-and-birds-that-nap-in-the-air.lesson:1
# text = It is asleep, but only with half its brain: the other half stays awake to steer, come up to breathe and watch for danger.
# source = school lesson (ours)
# course = biology
# lesson = 390-how-animals-sleep-half-asleep-dolphins-standing-horses-short-sleeping-giraffes-and-birds-that-nap-in-the-air.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): R6-punct-agree ×2, R7-rel-agree ×1
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	asleep	asleep	ADJ	JJ	Degree=Pos	0	root	_	_
4	,	,	PUNCT	,	_	10	punct	_	Agree=R6-punct-agree|Haiku=20:punct
5	but	but	CCONJ	CC	_	20	cc	_	_
6	only	only	ADV	RB	_	8	advmod	_	_
7	with	with	ADP	IN	_	8	case	_	_
8	half	half	NOUN	NN	Number=Sing|NumForm=Word|NumType=Frac	3	obl	_	_
9	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	brain	brain	NOUN	NN	Number=Sing	8	nmod	_	_
11	:	:	PUNCT	:	_	15	punct	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
13	other	other	ADJ	JJ	Degree=Pos	14	amod	_	_
14	half	half	NOUN	NN	Number=Sing|NumForm=Word|NumType=Frac	15	nsubj	_	_
15	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	parataxis	_	_
16	awake	awake	ADJ	JJ	Degree=Pos	15	xcomp	_	_
17	to	to	PART	TO	_	18	mark	_	_
18	steer	steer	VERB	VB	VerbForm=Inf	16	advcl	_	Agree=R7-rel-agree|Haiku=16:xcomp
19	,	,	PUNCT	,	_	20	punct	_	Agree=R6-punct-agree|Haiku=15:punct
20	come	come	VERB	VB	VerbForm=Inf	3	conj	_	_
21	up	up	ADP	RP	_	20	compound:prt	_	_
22	to	to	PART	TO	_	23	mark	_	_
23	breathe	breathe	VERB	VB	VerbForm=Inf	20	advcl	_	_
24	and	and	CCONJ	CC	_	25	cc	_	_
25	watch	watch	VERB	VB	VerbForm=Inf	23	conj	_	_
26	for	for	ADP	IN	_	27	case	_	_
27	danger	danger	NOUN	NN	Number=Sing	25	obl	_	_
28	.	.	PUNCT	.	_	3	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 | **is** | present | It |  |  |  |  | with half  half's brain; asleep *property* | tree rules |
| 2 | **stay** | present | the other half |  |  |  |  | awake *property* | vn exist-47.1 «NP V»: agent=Theme |
| 3 | **steer** | to-infinitive | the other half *not said here* |  |  |  |  |  | vn accompany-51.7 «NP V NP»: agent=Agent |
| 4 | **come up** | infinitive |  |  |  |  |  |  | vn escape-51.1-1 «NP V»: agent=Theme |
| 5 | **breathe** | to-infinitive |  |  |  |  |  |  | vn breathe-40.1.2-1 «NP V»: agent=Agent |
| 6 | **watch** | infinitive |  |  |  |  |  | for danger | vn search-35.2 «NP V PP.theme NP.location»: agent=Agent for danger=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:biology:390-how-animals-sleep-half-asleep-dolphins-standing-horses-short-sleeping-giraffes-and-birds-that-nap-in-the-air.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): R6-punct-agree ×2, R7-rel-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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