---
title: "dropped vinegar on me dad's fancy knife and it got dark spots. is i… — Tarnish and how metals change · tree and pragmatics
description: "dropped vinegar on me dad's fancy knife and it got dark spots. is it ruined?" What's going on? Test 8 · ★ 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 wron
---

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# Test 8 · ★ · Tarnish and how metals change

<!-- .ven lang=en -->
"dropped vinegar on me dad's fancy knife and it got dark spots. is it ruined?" What's going on?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 1 · wrong ✗ · **Who acts:** knife · **What happens:** drop, get, ruin, go on · **To what, where:** vinegar, dark spots, knife · **Speech:** someone speaks here

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This is test 8 · ★ 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/#t8).

## The question {#question}

<!-- .note -->
*Sentence 1:* "dropped vinegar on me dad's fancy knife and it got dark spots. is it ruined?"

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t8:1
# text = "dropped vinegar on me dad's fancy knife and it got dark spots. is it ruined?"
1	"	"	PUNCT	``	_	2	punct	_	SpaceAfter=No
2	dropped	drop	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	18	csubj	_	_
3	vinegar	vinegar	NOUN	NN	Number=Sing	2	obj	_	_
4	on	on	ADP	IN	_	5	case	_	_
5	me	I	PRON	PRP	Case=Acc|Number=Sing|Person=1|PronType=Prs	2	obl	_	_
6	dad	dad	NOUN	NN	Number=Sing	9	nmod:poss	_	SpaceAfter=No
7	's	's	PART	POS	_	6	case	_	_
8	fancy	fancy	ADJ	JJ	Degree=Pos	9	amod	_	_
9	knife	knife	NOUN	NN	Number=Sing	2	obj	_	_
10	and	and	CCONJ	CC	_	12	cc	_	_
11	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	nsubj	_	_
12	got	get	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	conj	_	_
13	dark	dark	ADJ	JJ	Degree=Pos	14	amod	_	_
14	spots	spot	NOUN	NNS	Number=Plur	12	obj	_	SpaceAfter=No
15	.	.	PUNCT	.	_	2	punct	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	18	aux:pass	_	_
17	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	18	nsubj:pass	_	_
18	ruined	ruin	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	SpaceAfter=No
19	?	?	PUNCT	.	_	18	punct	_	SpaceAfter=No
20	"	"	PUNCT	''	_	18	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **drop** *in a quote* | past |  | vinegar |  |  |  | on me | vn put\_direction-9.4 «NP V NP ADVP»: agent=Agent vinegar=Theme knife=Destination |
| 2 | **get** *in a quote* | past | knife | dark spots |  |  |  |  | vn comprehend-87.2-1 «NP V NP»: agent=Experiencer spot=Stimulus |
| 3 | **ruin** *in a quote* | present · passive |  | knife |  |  |  |  | vn destroy-44 «NP V NP»: subject=Patient |

<!-- .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 going on?

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t8:2
# text = What's going on?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	SpaceAfter=No
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux	_	_
3	going	go	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
4	on	on	ADP	RP	_	3	compound:prt	_	SpaceAfter=No
5	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **go on** | present · progressive |  |  |  |  |  |  | vn function-105.2.1 «NP V»: agent=Theme |

## The options {#options}

### Option 1 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Acid reacted with carbon steel; dry knives fast

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t8:o1:1
# text = Acid reacted with carbon steel; dry knives fast
1	Acid	acid	NOUN	NN	Number=Sing	0	root	_	_
2	reacted	react	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	1	acl	_	_
3	with	with	ADP	IN	_	5	case	_	_
4	carbon	carbon	NOUN	NN	Number=Sing	5	compound	_	_
5	steel	steel	NOUN	NN	Number=Sing	2	obl	_	SpaceAfter=No
6	;	;	PUNCT	:	_	8	punct	_	_
7	dry	dry	ADJ	JJ	Degree=Pos	8	amod	_	_
8	knives	knife	NOUN	NNS	Number=Plur	1	conj	_	_
9	fast	fast	ADV	RB	Degree=Pos	8	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **react** | participle |  | Acid and dry knives *not said here* |  |  |  | with carbon steel | vn respond-113 «NP V PP.predicate»: agent=Agent with steel=Eventuality |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
The knife is rusting from the inside out

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t8:o2:1
# text = The knife is rusting from the inside out
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	knife	knife	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	rusting	rust	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	inside	inside	NOUN	NN	Number=Sing	4	obl	_	_
8	out	out	ADV	RB	_	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **rust** | present · progressive | the knife |  |  | the inside |  | out *property* | vn entity\_specific\_cos-45.5 «NP.patient V»: agent=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
The steel is slowly turning into silver

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t8:o3:1
# text = The steel is slowly turning into silver
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	steel	steel	NOUN	NN	Number=Sing	5	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux	_	_
4	slowly	slowly	ADV	RB	_	5	advmod	_	_
5	turning	turn	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
6	into	into	ADP	IN	_	7	case	_	_
7	silver	silver	NOUN	NN	Number=Sing	5	obl	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The vinegar made the knife magnetic

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t8:o4:1
# text = The vinegar made the knife magnetic
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	vinegar	vinegar	NOUN	NN	Number=Sing	3	nsubj	_	_
3	made	make	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	knife	knife	NOUN	NN	Number=Sing	3	obj	_	_
6	magnetic	magnetic	ADJ	JJ	Degree=Pos	3	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | past | the vinegar | the knife |  |  |  | magnetic *property* | vn build-26.1-1 «NP.material V NP»: agent=Material knife=Product |

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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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