---
title: Ascertain the origin of the material which supplies Saturn's E ring. — Saturn's moons · tree and pragmatics
description: Ascertain the origin of the material which supplies Saturn's E ring. Exam question 3 of lesson 13 «Saturn's moons» 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 right.
---

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# Exam question 3 · Saturn's moons

<!-- .ven lang=en -->
Ascertain the origin of the material which supplies Saturn's E ring.

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** you, material · **What happens:** ascertain, supply · **To what, where:** origin, E ring

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This is exam question 3 of lesson 13 «Saturn's moons» of the space 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/space/13-saturns-moons/#e3).

## The question {#question}

```conllu
# sent_id = question:space:13-saturns-moons:e3:1
# text = Ascertain the origin of the material which supplies Saturn's E ring.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	origin	origin	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	material	material	NOUN	NN	Number=Sing	3	nmod	_	_
7	which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
8	supplies	supply	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	acl:relcl	_	_
9	Saturn	Saturn	PROPN	NNP	Number=Sing	12	nmod:poss	_	SpaceAfter=No
10	's	's	PART	POS	_	9	case	_	_
11	E	e	ADJ	JJ	Degree=Pos	12	amod	_	_
12	ring	ring	NOUN	NN	Number=Sing	8	obj	_	SpaceAfter=No
13	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the origin of the material |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent origin=Topic |
| 2 | **supply** | present | the material | Saturn's E ring |  |  |  |  | vn fulfilling-13.4.1-1 «NP V NP»: agent=Agent ring=Recipient |

<!-- .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 -->
Volcanic ash erupted from the surface of Titan

```conllu
# sent_id = question:space:13-saturns-moons:e3:o1:1
# text = Volcanic ash erupted from the surface of Titan
1	Volcanic	volcanic	ADJ	JJ	Degree=Pos	2	amod	_	_
2	ash	ash	NOUN	NN	Number=Sing	0	root	_	_
3	erupted	erupt	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	from	from	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	surface	surface	NOUN	NN	Number=Sing	3	obl	_	_
7	of	of	ADP	IN	_	8	case	_	_
8	Titan	Titan	PROPN	NNP	Number=Sing	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **erupt** | participle |  | Volcanic ash *not said here* |  | the surface of Titan |  |  | vn appear-48.1.1 «NP V»: agent=Theme |

### Option 2 · ← Mova's choice · ✓ the right answer {#o2}

<!-- .ven lang=en -->
The jets of water ice emitted by Enceladus

```conllu
# sent_id = question:space:13-saturns-moons:e3:o2:1
# text = The jets of water ice emitted by Enceladus
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	jets	jet	NOUN	NNS	Number=Plur	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	water	water	NOUN	NN	Number=Sing	5	compound	_	_
5	ice	ice	NOUN	NN	Number=Sing	2	nmod	_	_
6	emitted	emit	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl	_	_
7	by	by	ADP	IN	_	8	case	_	_
8	Enceladus	Enceladus	PROPN	NNP	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **emit** | participle |  | water ice *not said here* |  |  |  | by Enceladus | vn substance\_emission-43.4 «NP V NP»: agent=Source |

### Option 3 {#o3}

<!-- .ven lang=en -->
Fragments of the moon Mimas

```conllu
# sent_id = question:space:13-saturns-moons:e3:o3:1
# text = Fragments of the moon Mimas
1	Fragments	fragment	NOUN	NNS	Number=Plur	0	root	_	_
2	of	of	ADP	IN	_	4	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	moon	moon	NOUN	NN	Number=Sing	1	nmod	_	_
5	Mimas	Mimas	PROPN	NNP	Number=Sing	1	nmod	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
Dust from the Cassini spacecraft

```conllu
# sent_id = question:space:13-saturns-moons:e3:o4:1
# text = Dust from the Cassini spacecraft
1	Dust	dust	NOUN	NN	Number=Sing	0	root	_	_
2	from	from	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	Cassini	Cassini	PROPN	NNP	Number=Sing	5	compound	_	_
5	spacecraft	spacecraft	NOUN	NN	Number=Sing	1	nmod	_	_
```

<!-- .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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