---
title: Why would water ice on the Moon be so useful to future crews? — What comes next: the Moon, Mars and be… · tree and pragmatics
description: Why would water ice on the Moon be so useful to future crews? Test 4 · ★★ of lesson 30 «What comes next: the Moon, Mars and beyond» of the space course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/space/30-what-comes-next-the-moon-mars-and-beyond/t4/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Space](https://md.mova.elamur.ai/free/en/corpora/questions/space/) / [What comes next: the Moon, Mars and be…](https://md.mova.elamur.ai/free/en/corpora/questions/space/30-what-comes-next-the-moon-mars-and-beyond/) / t4

# Test 4 · ★★ · What comes next: the Moon, Mars and beyond

<!-- .ven lang=en -->
Why would water ice on the Moon be so useful to future crews?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 3 · wrong ✗ · **Who acts:** water ice · **What happens:** be

<!-- .vabout -->
This is test 4 · ★★ of lesson 30 «What comes next: the Moon, Mars and beyond» of the space 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/space/30-what-comes-next-the-moon-mars-and-beyond/#t4).

## The question {#question}

```conllu
# sent_id = question:space:30-what-comes-next-the-moon-mars-and-beyond:t4:1
# text = Why would water ice on the Moon be so useful to future crews?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
3	water	water	NOUN	NN	Number=Sing	4	compound	_	_
4	ice	ice	NOUN	NN	Number=Sing	10	nsubj	_	_
5	on	on	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	Moon	Moon	PROPN	NNP	Number=Sing	4	nmod	_	_
8	be	be	AUX	VB	VerbForm=Inf	10	cop	_	_
9	so	so	ADV	RB	_	10	advmod	_	_
10	useful	useful	ADJ	JJ	Degree=Pos	0	root	_	_
11	to	to	ADP	IN	_	13	case	_	_
12	future	future	ADJ	JJ	Degree=Pos	13	amod	_	_
13	crews	crew	NOUN	NNS	Number=Plur	10	obl	_	SpaceAfter=No
14	?	?	PUNCT	.	_	10	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | infinitive | water ice on the Moon |  |  |  |  | to future crews; useful *property* | tree rules |

<!-- .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 {#o1}

<!-- .ven lang=en -->
It could be melted and sold as ice cream to tourists

```conllu
# sent_id = question:space:30-what-comes-next-the-moon-mars-and-beyond:t4:o1:1
# text = It could be melted and sold as ice cream to tourists
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
2	could	could	AUX	MD	VerbForm=Fin	4	aux	_	_
3	be	be	AUX	VB	VerbForm=Inf	4	aux:pass	_	_
4	melted	melt	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	and	and	CCONJ	CC	_	6	cc	_	_
6	sold	sell	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	conj	_	_
7	as	as	ADP	IN	_	9	case	_	_
8	ice	ice	NOUN	NN	Number=Sing	9	compound	_	_
9	cream	cream	NOUN	NN	Number=Sing	6	obl	_	_
10	to	to	ADP	IN	_	11	case	_	_
11	tourists	tourist	NOUN	NNS	Number=Plur	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **melt** | could · passive |  | It |  |  |  |  | vn other\_cos-45.4-1 «NP V NP ADJ»: subject=Result |
| 2 | **sell** | participle |  |  | tourists |  |  | as ice cream | vn give-13.1-1 «NP V PP.recipient»: agent=Agent to tourist=Recipient |

### Option 2 {#o2}

<!-- .ven lang=en -->
It keeps the Moon from spinning too fast and wobbling

```conllu
# sent_id = question:space:30-what-comes-next-the-moon-mars-and-beyond:t4:o2:1
# text = It keeps the Moon from spinning too fast and wobbling
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	Moon	Moon	PROPN	NNP	Number=Sing	2	obj	_	_
5	from	from	SCONJ	IN	_	6	mark	_	_
6	spinning	spin	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	_	_
7	too	too	ADV	RB	_	8	advmod	_	_
8	fast	fast	ADV	RB	Degree=Pos	6	advmod	_	_
9	and	and	CCONJ	CC	_	10	cc	_	_
10	wobbling	wobble	VERB	VBG	Tense=Pres|VerbForm=Part	6	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present | It | the Moon |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent moon=Theme |
| 2 | **spin** | gerund |  |  |  |  |  | fast *property* | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 3 | **wobble** | gerund |  |  |  |  |  |  | vn modes\_of\_being\_with\_motion-47.3 «NP V»: agent=Theme |

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

<!-- .ven lang=en -->
It could give drinking water, air and rocket fuel

```conllu
# sent_id = question:space:30-what-comes-next-the-moon-mars-and-beyond:t4:o3:1
# text = It could give drinking water, air and rocket fuel
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	could	could	AUX	MD	VerbForm=Fin	3	aux	_	_
3	give	give	VERB	VB	VerbForm=Inf	0	root	_	_
4	drinking	drink	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	water	water	NOUN	NN	Number=Sing	3	obj	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	air	air	NOUN	NN	Number=Sing	5	conj	_	_
8	and	and	CCONJ	CC	_	10	cc	_	_
9	rocket	rocket	NOUN	NN	Number=Sing	10	compound	_	_
10	fuel	fuel	NOUN	NN	Number=Sing	5	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | could | It | drinking water and air and rocket fuel |  |  |  |  | vn give-13.1-1 «NP V NP»: agent=Agent water=Theme |
| 2 | **drink** | gerund |  |  |  |  |  |  | vn eat-39.1-1 «NP V»: agent=Agent |

### Option 4 · ← Mova's choice {#o4}

<!-- .ven lang=en -->
It makes the Moon's gravity stronger so people don't float

```conllu
# sent_id = question:space:30-what-comes-next-the-moon-mars-and-beyond:t4:o4:1
# text = It makes the Moon's gravity stronger so people don't float
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	Moon	Moon	PROPN	NNP	Number=Sing	6	nmod:poss	_	SpaceAfter=No
5	's	's	PART	POS	_	4	case	_	_
6	gravity	gravity	NOUN	NN	Number=Sing	2	obj	_	_
7	stronger	strong	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
8	so	so	SCONJ	IN	_	12	mark	_	_
9	people	people	NOUN	NNS	Number=Plur	12	nsubj	_	_
10	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	12	aux	_	SpaceAfter=No
11	n't	not	PART	RB	Polarity=Neg	12	advmod	_	_
12	float	float	VERB	VB	VerbForm=Inf	2	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | It | the Moon's gravity |  |  |  | strong *property* | vn build-26.1-1 «NP.material V NP»: agent=Material gravity=Product |
| 2 | **not** **float** | present · do-support | people |  |  |  |  |  | vn run-51.3.2-2 «NP V»: agent=Theme |

<!-- div src -->

**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 -->

<!-- pn -->
- ← previous: [What comes next: the Moon, Mars and be…, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/space/30-what-comes-next-the-moon-mars-and-beyond/t3/)
- next →: [What comes next: the Moon, Mars and be…, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/space/30-what-comes-next-the-moon-mars-and-beyond/t5/)
- ↑ back to [What comes next: the Moon, Mars and beyond](https://md.mova.elamur.ai/free/en/corpora/questions/space/30-what-comes-next-the-moon-mars-and-beyond/)