---
title: A mystery mineral scratches glass but is scratched by quartz. What c… — Minerals and crystals · tree and pragmatics
description: A mystery mineral scratches glass but is scratched by quartz. What can you say about it? Test 3 · ★★ of lesson 50 «Minerals and crystals» of the geography 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 3 · ★★ · Minerals and crystals

<!-- .ven lang=en -->
A mystery mineral scratches glass but is scratched by quartz. What can you say about it?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** mystery mineral, quartz, you · **What happens:** scratch, say · **To what, where:** glass · **Speech:** someone speaks here

<!-- .vabout -->
This is test 3 · ★★ of lesson 50 «Minerals and crystals» of the geography 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/geography/50-minerals-and-crystals/#t3).

## The question {#question}

<!-- .note -->
*Sentence 1:* A mystery mineral scratches glass but is scratched by quartz.

```conllu
# sent_id = question:geography:50-minerals-and-crystals:t3:1
# text = A mystery mineral scratches glass but is scratched by quartz.
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	mystery	mystery	NOUN	NN	Number=Sing	3	compound	_	_
3	mineral	mineral	NOUN	NN	Number=Sing	4	nsubj	_	_
4	scratches	scratch	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	glass	glass	NOUN	NN	Number=Sing	4	obj	_	_
6	but	but	CCONJ	CC	_	8	cc	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
8	scratched	scratch	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	conj	_	_
9	by	by	ADP	IN	_	10	case	_	_
10	quartz	quartz	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
11	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **scratch** | present | a mystery mineral | glass |  |  |  |  | vn scribble-25.2-1 «NP V NP»: agent=Agent glass=Theme |
| 2 | **scratch** | present · passive | quartz |  |  |  |  |  | vn scribble-25.2-1 «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.

<!-- .note -->
*Sentence 2:* What can you say about it?

```conllu
# sent_id = question:geography:50-minerals-and-crystals:t3:2
# text = What can you say about it?
1	What	what	PRON	WP	PronType=Int	4	obj	_	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	_	_
4	say	say	VERB	VB	VerbForm=Inf	0	root	_	_
5	about	about	ADP	IN	_	6	case	_	_
6	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	obl	_	SpaceAfter=No
7	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | can | you |  |  |  |  | about quartz | vn say-37.7-1-1 «NP V NP.topic»: agent=Agent what=Topic |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
It must be talc

```conllu
# sent_id = question:geography:50-minerals-and-crystals:t3:o1:1
# text = It must be talc
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
2	must	must	AUX	MD	VerbForm=Fin	4	aux	_	_
3	be	be	AUX	VB	VerbForm=Inf	4	cop	_	_
4	talc	talc	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | must | It | talc |  |  |  |  | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
It is harder than quartz and softer than glass

```conllu
# sent_id = question:geography:50-minerals-and-crystals:t3:o2:1
# text = It is harder than quartz and softer than glass
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	harder	hard	ADJ	JJR	Degree=Cmp	0	root	_	_
4	than	than	ADP	IN	_	5	case	_	_
5	quartz	quartz	NOUN	NN	Number=Sing	3	obl	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	softer	soft	ADJ	JJR	Degree=Cmp	3	conj	_	_
8	than	than	ADP	IN	_	9	case	_	_
9	glass	glass	NOUN	NN	Number=Sing	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | It |  |  |  |  | than quartz; hard *property* | tree rules |
| 2 | **be** |  |  |  |  |  |  | than glass | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
It must be diamond, the hardest of all

```conllu
# sent_id = question:geography:50-minerals-and-crystals:t3:o3:1
# text = It must be diamond, the hardest of all
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
2	must	must	AUX	MD	VerbForm=Fin	4	aux	_	_
3	be	be	AUX	VB	VerbForm=Inf	4	cop	_	_
4	diamond	diamond	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
5	,	,	PUNCT	,	_	7	punct	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	hardest	hard	ADJ	JJS	Degree=Sup	4	parataxis	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	all	all	DET	DT	PronType=Tot	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | must | It |  |  |  |  | diamond *property* | tree rules |

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

<!-- .ven lang=en -->
It is softer than quartz but harder than glass

```conllu
# sent_id = question:geography:50-minerals-and-crystals:t3:o4:1
# text = It is softer than quartz but harder than glass
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	softer	soft	ADJ	JJR	Degree=Cmp	0	root	_	_
4	than	than	ADP	IN	_	5	case	_	_
5	quartz	quartz	NOUN	NN	Number=Sing	3	obl	_	_
6	but	but	CCONJ	CC	_	7	cc	_	_
7	harder	hard	ADJ	JJR	Degree=Cmp	3	conj	_	_
8	than	than	ADP	IN	_	9	case	_	_
9	glass	glass	NOUN	NN	Number=Sing	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | It |  |  |  |  | than quartz; soft *property* | tree rules |
| 2 | **be** |  |  |  |  |  |  | than glass | tree rules |

<!-- 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 -->

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- ← previous: [Minerals and crystals, test 2](https://md.mova.elamur.ai/free/en/corpora/questions/geography/50-minerals-and-crystals/t2/)
- next →: [Minerals and crystals, test 4](https://md.mova.elamur.ai/free/en/corpora/questions/geography/50-minerals-and-crystals/t4/)
- ↑ back to [Minerals and crystals](https://md.mova.elamur.ai/free/en/corpora/questions/geography/50-minerals-and-crystals/)

