---
title: Identify the principal reason for which astronauts exercise daily in… — Sleep, exercise and growing up · tree and pragmatics
description: Identify the principal reason for which astronauts exercise daily in space. Exam question 3 of lesson 38 «Sleep, exercise and growing up» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Exam question 3 · Sleep, exercise and growing up

<!-- .ven lang=en -->
Identify the principal reason for which astronauts exercise daily in space.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, astronauts · **What happens:** identify, exercise · **To what, where:** principal reason, space

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This is exam question 3 of lesson 38 «Sleep, exercise and growing up» of the world 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/world/38-sleep-exercise-growing/#e3).

## The question {#question}

```conllu
# sent_id = question:world:38-sleep-exercise-growing:e3:1
# text = Identify the principal reason for which astronauts exercise daily in space.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	which	which	PRON	WDT	PronType=Rel	8	obl	_	_
7	astronauts	astronaut	NOUN	NNS	Number=Plur	8	nsubj	_	_
8	exercise	exercise	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	acl:relcl	_	_
9	daily	daily	ADV	RB	_	8	advmod	_	_
10	in	in	ADP	IN	_	11	case	_	_
11	space	space	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
12	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the principal reason |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent reason=Theme |
| 2 | **exercise** | present | astronauts |  |  | space |  | for the principal reason; daily *property* | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
To preserve the strength of their muscles and bones

```conllu
# sent_id = question:world:38-sleep-exercise-growing:e3:o1:1
# text = To preserve the strength of their muscles and bones
1	To	to	PART	TO	_	2	mark	_	_
2	preserve	preserve	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	strength	strength	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	muscles	muscle	NOUN	NNS	Number=Plur	4	nmod	_	_
8	and	and	CCONJ	CC	_	9	cc	_	_
9	bones	bone	NOUN	NNS	Number=Plur	7	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **preserve** | to-infinitive |  | the strength of their muscles and bones |  |  |  |  | vn defend-72.3 «NP V NP»: agent=Agent strength=Beneficiary |

### Option 2 {#o2}

<!-- .ven lang=en -->
To increase their weight

```conllu
# sent_id = question:world:38-sleep-exercise-growing:e3:o2:1
# text = To increase their weight
1	To	to	PART	TO	_	2	mark	_	_
2	increase	increase	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	weight	weight	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **increase** | to-infinitive |  | their weight |  |  |  |  | vn caused\_calibratable\_cos-45.6.2-1 «NP V NP.patient»: agent=Causer weight=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
To generate warmth within the vessel during the night

```conllu
# sent_id = question:world:38-sleep-exercise-growing:e3:o3:1
# text = To generate warmth within the vessel during the night
1	To	to	PART	TO	_	2	mark	_	_
2	generate	generate	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	warmth	warmth	NOUN	NN	Number=Sing	2	obj	_	_
4	within	within	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	vessel	vessel	NOUN	NN	Number=Sing	2	obl	_	_
7	during	during	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	night	night	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **generate** | to-infinitive |  | warmth |  |  | night | within the vessel | vn birth-28.2-1 «NP V NP»: agent=Agent warmth=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
To propel the vessel through space

```conllu
# sent_id = question:world:38-sleep-exercise-growing:e3:o4:1
# text = To propel the vessel through space
1	To	to	PART	TO	_	2	mark	_	_
2	propel	propel	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	vessel	vessel	NOUN	NN	Number=Sing	2	obj	_	_
5	through	through	ADP	IN	_	6	case	_	_
6	space	space	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **propel** | to-infinitive |  | the vessel |  | space |  |  | tree rules |

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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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- ← previous: [Sleep, exercise and growing up, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/world/38-sleep-exercise-growing/e2/)
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