---
title: Why is it so much harder to wake up from deep sleep than from light… — Sleep and dreams in people · tree and pragmatics
description: Why is it so much harder to wake up from deep sleep than from light sleep? Test 2 of lesson 363 «Sleep and dreams in people» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 2 · Sleep and dreams in people

<!-- .ven lang=en -->
Why is it so much harder to wake up from deep sleep than from light sleep?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** it · **What happens:** be, wake up · **To what, where:** deep sleep

<!-- .vabout -->
This is test 2 of lesson 363 «Sleep and dreams in people» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/363-sleep-and-dreams-in-people/#t2).

## The question {#question}

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:t2:1
# text = Why is it so much harder to wake up from deep sleep than from light sleep?
1	Why	why	ADV	WRB	PronType=Int	6	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	_
4	so	so	ADV	RB	_	5	advmod	_	_
5	much	much	ADV	RB	_	6	advmod	_	_
6	harder	hard	ADJ	JJR	Degree=Cmp	0	root	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	wake	wake	VERB	VB	VerbForm=Inf	6	xcomp	_	_
9	up	up	ADP	RP	_	8	compound:prt	_	_
10	from	from	ADP	IN	_	12	case	_	_
11	deep	deep	ADJ	JJ	Degree=Pos	12	amod	_	_
12	sleep	sleep	NOUN	NN	Number=Sing	8	obl	_	_
13	than	than	ADP	IN	_	16	case	_	_
14	from	from	ADP	IN	_	16	case	_	_
15	light	light	NOUN	NN	Number=Sing	16	compound	_	_
16	sleep	sleep	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
17	?	?	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | it |  |  |  |  | hard *property* | tree rules |
| 2 | **wake up** | to-infinitive |  |  |  | deep sleep |  | than light sleep | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

<!-- .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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Light sleep has no brain activity at all

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:t2:o1:1
# text = Light sleep has no brain activity at all
1	Light	light	NOUN	NN	Number=Sing	2	compound	_	_
2	sleep	sleep	NOUN	NN	Number=Sing	3	nsubj	_	_
3	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	no	no	DET	DT	PronType=Neg	6	det	_	_
5	brain	brain	NOUN	NN	Number=Sing	6	compound	_	_
6	activity	activity	NOUN	NN	Number=Sing	3	obj	_	_
7	at	at	ADP	IN	_	8	case	_	_
8	all	all	DET	DT	PronType=Tot	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | Light sleep | no brain activity |  | all |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent activity=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
In deep sleep you are dreaming so loudly that you cannot hear anything else

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:t2:o2:1
# text = In deep sleep you are dreaming so loudly that you cannot hear anything else
1	In	in	ADP	IN	_	3	case	_	_
2	deep	deep	ADJ	JJ	Degree=Pos	3	amod	_	_
3	sleep	sleep	NOUN	NN	Number=Sing	6	obl	_	_
4	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	_	_
5	are	be	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	6	aux	_	_
6	dreaming	dream	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
7	so	so	ADV	RB	_	8	advmod	_	_
8	loudly	loudly	ADV	RB	_	6	advmod	_	_
9	that	that	SCONJ	IN	_	13	mark	_	_
10	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	13	nsubj	_	_
11	can	can	AUX	MD	VerbForm=Fin	13	aux	_	SpaceAfter=No
12	not	not	PART	RB	Polarity=Neg	13	advmod	_	_
13	hear	hear	VERB	VB	VerbForm=Inf	6	advcl	_	_
14	anything	anything	PRON	NN	Number=Sing|PronType=Ind	13	obj	_	_
15	else	else	ADV	RB	_	14	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dream** | present · progressive | you |  |  | deep sleep |  | loudly *property* | vn cognize-85 «NP V PP.topic»: agent=Agent |
| 2 | **not** **hear** | can | you | anything |  |  |  |  | vn see-30.1-1-1 «NP V S»: agent=Experiencer anything=Stimulus |

### Option 3 {#o3}

<!-- .ven lang=en -->
Deep sleep only happens with eyes open

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:t2:o3:1
# text = Deep sleep only happens with eyes open
1	Deep	deep	ADJ	JJ	Degree=Pos	2	amod	_	_
2	sleep	sleep	NOUN	NN	Number=Sing	4	nsubj	_	_
3	only	only	ADV	RB	_	4	advmod	_	_
4	happens	happen	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	with	with	ADP	IN	_	6	case	_	_
6	eyes	eye	NOUN	NNS	Number=Plur	4	obl	_	_
7	open	open	ADJ	JJ	Degree=Pos	4	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | present | Deep sleep |  |  |  |  | with eyes; open *property* | vn occur-48.3-1 «NP V»: agent=Theme |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
In deep sleep the brain is far less ready to notice the world

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:t2:o4:1
# text = In deep sleep the brain is far less ready to notice the world
1	In	in	ADP	IN	_	3	case	_	_
2	deep	deep	ADJ	JJ	Degree=Pos	3	amod	_	_
3	sleep	sleep	NOUN	NN	Number=Sing	9	obl	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	brain	brain	NOUN	NN	Number=Sing	9	nsubj	_	_
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
7	far	far	ADV	RB	Degree=Pos	8	advmod	_	_
8	less	less	ADJ	JJR	Degree=Cmp	9	advmod	_	_
9	ready	ready	ADJ	JJ	Degree=Pos	0	root	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	notice	notice	VERB	VB	VerbForm=Inf	9	xcomp	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	world	world	NOUN	NN	Number=Sing	11	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | the brain |  |  | deep sleep |  | ready *property* | tree rules |
| 2 | **notice** | to-infinitive | the brain *not said here* | the world |  |  |  |  | vn see-30.1-1 «NP V S»: agent=Experiencer world=Stimulus |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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- ← previous: [Sleep and dreams in people, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/363-sleep-and-dreams-in-people/t1/)
- next →: [Sleep and dreams in people, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/363-sleep-and-dreams-in-people/t3/)
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