---
title: Grandma's silver teapot is dark; Mia wants to scrub hard with polish… — Tarnish and how metals change · tree and pragmatics
description: Grandma's silver teapot is dark; Mia wants to scrub hard with polish every week. What's the catch? Test 2 · ★ of lesson 14 «Tarnish and how metals change» 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 w
---

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# Test 2 · ★ · Tarnish and how metals change

<!-- .ven lang=en -->
Grandma's silver teapot is dark; Mia wants to scrub hard with polish every week. What's the catch?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** silver teapot, Mia, catch · **What happens:** be, want, scrub

<!-- .vabout -->
This is test 2 · ★ of lesson 14 «Tarnish and how metals change» 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/14-tarnish-and-how-metals-change/#t2).

## The question {#question}

<!-- .note -->
*Sentence 1:* Grandma's silver teapot is dark; Mia wants to scrub hard with polish every week.

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t2:1
# text = Grandma's silver teapot is dark; Mia wants to scrub hard with polish every week.
1	Grandma	grandma	NOUN	NN	Number=Sing	4	nmod:poss	_	SpaceAfter=No
2	's	's	PART	POS	_	1	case	_	_
3	silver	silver	NOUN	NN	Number=Sing	4	compound	_	_
4	teapot	teapot	NOUN	NN	Number=Sing	6	nsubj	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
6	dark	dark	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
7	;	;	PUNCT	:	_	9	punct	_	_
8	Mia	Mia	PROPN	NNP	Number=Sing	9	nsubj	_	_
9	wants	want	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	parataxis	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	scrub	scrub	VERB	VB	VerbForm=Inf	9	xcomp	_	_
12	hard	hard	ADV	RB	Degree=Pos	11	advmod	_	_
13	with	with	ADP	IN	_	14	case	_	_
14	polish	polish	NOUN	NN	Number=Sing	11	obl	_	_
15	every	every	DET	DT	PronType=Tot	16	det	_	_
16	week	week	NOUN	NN	Number=Sing	11	obl:unmarked	_	SpaceAfter=No
17	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Grandma's silver teapot |  |  |  |  | dark *property* | tree rules |
| 2 | **want** | present | Mia |  |  |  |  |  | vn want-32.1-1-1 «NP V NP S\_INF»: agent=Pivot clause=Theme |
| 3 | **scrub** *not said to happen* | to-infinitive | Mia *not said here* |  |  |  | week | with polish; hard *property* | vn wipe\_manner-10.4.1-1 «NP V PP-Conative»: 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's the catch?

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t2:2
# text = What's the catch?
1	What	what	PRON	WP	PronType=Int	0	root	_	SpaceAfter=No
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	catch	catch	NOUN	NN	Number=Sing	1	nsubj	_	SpaceAfter=No
5	?	?	PUNCT	.	_	1	punct	_	_
```

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

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Polish turns silver into copper

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t2:o1:1
# text = Polish turns silver into copper
1	Polish	polish	NOUN	NN	Number=Sing	2	nsubj	_	_
2	turns	turn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	silver	silver	NOUN	NN	Number=Sing	2	obj	_	_
4	into	into	ADP	IN	_	5	case	_	_
5	copper	copper	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn** | present | Polish | silver |  | copper |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent silver=Theme into copper=Trajectory |

### Option 2 {#o2}

<!-- .ven lang=en -->
Polish makes the silver rust like iron

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t2:o2:1
# text = Polish makes the silver rust like iron
1	Polish	polish	NOUN	NN	Number=Sing	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	5	det	_	_
4	silver	silver	NOUN	NN	Number=Sing	5	compound	_	_
5	rust	rust	NOUN	NN	Number=Sing	2	obj	_	_
6	like	like	ADP	IN	_	7	case	_	_
7	iron	iron	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Polish | the silver rust |  |  |  | like iron | vn build-26.1-1 «NP.asset V NP»: agent=Asset rust=Product |

### Option 3 {#o3}

<!-- .ven lang=en -->
Scrubbing makes the tarnish come back green

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t2:o3:1
# text = Scrubbing makes the tarnish come back green
1	Scrubbing	scrub	VERB	VBG	VerbForm=Ger	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	tarnish	tarnish	NOUN	NN	Number=Sing	2	obj	_	_
5	come	come	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	xcomp	_	_
6	back	back	ADV	RB	_	5	advmod	_	_
7	green	green	ADJ	JJ	Degree=Pos	5	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **scrub** | gerund |  |  |  |  |  |  | vn wipe\_manner-10.4.1-1 «NP V PP-Conative»: agent=Agent |
| 2 | **make** | present |  | the tarnish |  |  |  |  | tree rules |
| 3 | **come back** | present | the tarnish *not said here* |  |  |  |  | green *property* | vn escape-51.1-1 «NP V»: agent=Theme |

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

<!-- .ven lang=en -->
Each polish rubs a little silver away

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t2:o4:1
# text = Each polish rubs a little silver away
1	Each	each	DET	DT	PronType=Tot	2	det	_	_
2	polish	polish	NOUN	NN	Number=Sing	3	nsubj	_	_
3	rubs	rub	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	little	little	ADJ	JJ	Degree=Pos	6	amod	_	_
6	silver	silver	NOUN	NN	Number=Sing	3	obj	_	_
7	away	away	ADV	RB	_	3	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **rub** | present | each polish | a little silver |  |  |  | away *property* | vn spray-9.7-1 «NP V NP.theme»: agent=Agent silver=Theme |

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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: [Tarnish and how metals change, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t1/)
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