---
title: Ruby finds a frosty green pebble on the beach: "is it a gem?" Most l… — Glass and pottery · tree and pragmatics
description: Ruby finds a frosty green pebble on the beach: "is it a gem?" Most likely? Test 6 · ★★ of lesson 30 «Glass and pottery» of the chemistry 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 6 · ★★ · Glass and pottery

<!-- .ven lang=en -->
Ruby finds a frosty green pebble on the beach: "is it a gem?" Most likely?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** Ruby, pebble · **What happens:** find, be · **To what, where:** frosty green pebble, beach, gem · **Speech:** someone speaks here

<!-- .vabout -->
This is test 6 · ★★ of lesson 30 «Glass and pottery» of the chemistry 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/chemistry/30-glass-and-pottery/#t6).

## The question {#question}

<!-- .note -->
*Sentence 1:* Ruby finds a frosty green pebble on the beach: "is it a gem?"

```conllu
# sent_id = question:chemistry:30-glass-and-pottery:t6:1
# text = Ruby finds a frosty green pebble on the beach: "is it a gem?"
1	Ruby	Ruby	PROPN	NNP	Number=Sing	2	nsubj	_	_
2	finds	find	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
4	frosty	frosty	ADJ	JJ	Degree=Pos	6	amod	_	_
5	green	green	ADJ	JJ	Degree=Pos	6	amod	_	_
6	pebble	pebble	NOUN	NN	Number=Sing	2	obj	_	_
7	on	on	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	beach	beach	NOUN	NN	Number=Sing	6	nmod	_	SpaceAfter=No
10	:	:	PUNCT	:	_	2	punct	_	_
11	"	"	PUNCT	``	_	15	punct	_	SpaceAfter=No
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	cop	_	_
13	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	15	nsubj	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
15	gem	gem	NOUN	NN	Number=Sing	2	parataxis	_	SpaceAfter=No
16	?	?	PUNCT	.	_	15	punct	_	SpaceAfter=No
17	"	"	PUNCT	''	_	15	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **find** | present | Ruby | a frosty green pebble |  | the beach |  |  | vn declare-29.4-1-1 «NP V NP ADJ»: agent=Agent pebble=Attribute clause=Theme |
| 2 | **is a** *in a quote* | present | pebble | a gem |  |  |  |  | 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.

<!-- .note -->
*Sentence 2:* Most likely?

```conllu
# sent_id = question:chemistry:30-glass-and-pottery:t6:2
# text = Most likely?
1	Most	most	ADJ	JJS	Degree=Sup	2	nsubj	_	_
2	likely	likely	ADV	RB	_	0	root	_	SpaceAfter=No
3	?	?	PUNCT	.	_	2	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 -->
A frozen drop of sea water

```conllu
# sent_id = question:chemistry:30-glass-and-pottery:t6:o1:1
# text = A frozen drop of sea water
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	frozen	freeze	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	amod	_	_
3	drop	drop	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	sea	sea	NOUN	NN	Number=Sing	6	compound	_	_
6	water	water	NOUN	NN	Number=Sing	3	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **freeze** | participle |  |  |  |  |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
A piece of green plastic from a toy

```conllu
# sent_id = question:chemistry:30-glass-and-pottery:t6:o2:1
# text = A piece of green plastic from a toy
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	piece	piece	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	green	green	ADJ	JJ	Degree=Pos	5	amod	_	_
5	plastic	plastic	NOUN	NN	Number=Sing	2	nmod	_	_
6	from	from	ADP	IN	_	8	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	toy	toy	NOUN	NN	Number=Sing	2	nmod	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
A real emerald from a sunken pirate shipwreck

```conllu
# sent_id = question:chemistry:30-glass-and-pottery:t6:o3:1
# text = A real emerald from a sunken pirate shipwreck
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	real	real	ADJ	JJ	Degree=Pos	3	amod	_	_
3	emerald	emerald	NOUN	NN	Number=Sing	0	root	_	_
4	from	from	ADP	IN	_	8	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
6	sunken	sunken	ADJ	JJ	Degree=Pos	8	amod	_	_
7	pirate	pirate	NOUN	NN	Number=Sing	8	compound	_	_
8	shipwreck	shipwreck	NOUN	NN	Number=Sing	3	nmod	_	_
```

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

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

<!-- .ven lang=en -->
Old bottle glass rubbed by the sea for years

```conllu
# sent_id = question:chemistry:30-glass-and-pottery:t6:o4:1
# text = Old bottle glass rubbed by the sea for years
1	Old	old	ADJ	JJ	Degree=Pos	3	amod	_	_
2	bottle	bottle	NOUN	NN	Number=Sing	3	compound	_	_
3	glass	glass	NOUN	NN	Number=Sing	0	root	_	_
4	rubbed	rub	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl	_	_
5	by	by	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	sea	sea	NOUN	NN	Number=Sing	4	obl	_	_
8	for	for	ADP	IN	_	9	case	_	_
9	years	year	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **rub** | participle |  | Old bottle glass *not said here* |  |  | year | by the sea | vn spray-9.7-1 «NP V PP.destination»: agent=Theme by sea=Destination |

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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: [Glass and pottery, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/30-glass-and-pottery/t5/)
- next →: [Glass and pottery, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/30-glass-and-pottery/t7/)
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