---
title: State the approximate duration of a single cycle of sleep in a human… — Sleep and dreams in people · tree and pragmatics
description: State the approximate duration of a single cycle of sleep in a human being. Exam question 1 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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# Exam question 1 · Sleep and dreams in people

<!-- .ven lang=en -->
State the approximate duration of a single cycle of sleep in a human being.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗

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This is exam question 1 of lesson 363 «Sleep and dreams in people» of the biology course of Mova's primary school, asked in stiff, formal language. 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/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:e1:1
# text = State the approximate duration of a single cycle of sleep in a human being.
1	State	state	NOUN	NN	Number=Sing	4	compound	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	approximate	approximate	ADJ	JJ	Degree=Pos	4	amod	_	_
4	duration	duration	NOUN	NN	Number=Sing	0	root	_	_
5	of	of	ADP	IN	_	8	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	single	single	ADJ	JJ	Degree=Pos	8	amod	_	_
8	cycle	cycle	NOUN	NN	Number=Sing	4	nmod	_	_
9	of	of	ADP	IN	_	10	case	_	_
10	sleep	sleep	NOUN	NN	Number=Sing	8	nmod	_	_
11	in	in	ADP	IN	_	13	case	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	human	human	ADJ	JJ	Degree=Pos	4	parataxis	_	_
14	being	be	AUX	VBG	Tense=Pres|VerbForm=Part	13	advcl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Twelve hours

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:e1:o1:1
# text = Twelve hours
1	Twelve	twelve	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	hours	hour	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
Ten minutes

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:e1:o2:1
# text = Ten minutes
1	Ten	ten	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	minutes	minute	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Ninety minutes

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:e1:o3:1
# text = Ninety minutes
1	Ninety	ninety	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	minutes	minute	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
Four hours

```conllu
# sent_id = question:biology:363-sleep-and-dreams-in-people:e1:o4:1
# text = Four hours
1	Four	four	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	hours	hour	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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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.

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