---
title: "my mate says cola dissolves a tooth overnight, legit?" — Tarnish and how metals change · tree and pragmatics
description: "my mate says cola dissolves a tooth overnight, legit?" Test 1 · ★ 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 right.
---

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# Test 1 · ★ · Tarnish and how metals change

<!-- .ven lang=en -->
"my mate says cola dissolves a tooth overnight, legit?"

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** mate, cola · **What happens:** say, dissolve · **To what, where:** tooth · **Speech:** someone speaks here

<!-- .vabout -->
This is test 1 · ★ 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/#t1).

## The question {#question}

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t1:1
# text = "my mate says cola dissolves a tooth overnight, legit?"
1	"	"	PUNCT	``	_	4	punct	_	SpaceAfter=No
2	my	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	3	nmod:poss	_	_
3	mate	mate	NOUN	NN	Number=Sing	4	nsubj	_	_
4	says	say	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	cola	cola	NOUN	NN	Number=Sing	6	nsubj	_	_
6	dissolves	dissolve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	ccomp	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	tooth	tooth	NOUN	NN	Number=Sing	6	obj	_	_
9	overnight	overnight	ADV	RB	_	6	advmod	_	SpaceAfter=No
10	,	,	PUNCT	,	_	11	punct	_	_
11	legit	legit	NOUN	NN	Number=Sing	6	parataxis	_	SpaceAfter=No
12	?	?	PUNCT	.	_	4	punct	_	SpaceAfter=No
13	"	"	PUNCT	''	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: ask* *in a quote* | present | my mate |  |  |  |  |  | vn say-37.7-1-1 «NP V that S»: agent=Agent clause=Topic |
| 2 | **dissolve** *in a quote* | present | cola | a tooth |  |  |  | overnight *property* | vn break-45.1 «NP V NP»: agent=Agent tooth=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.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Yes, it's totally gone by morning, there's nothing left in the glass

<!-- fold The tree, 14 words -->
```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t1:o1:1
# text = Yes, it's totally gone by morning, there's nothing left in the glass
1	Yes	yes	INTJ	UH	Polarity=Pos	6	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	SpaceAfter=No
4	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	aux	_	_
5	totally	totally	ADV	RB	_	6	advmod	_	_
6	gone	go	VERB	VBN	Tense=Past|VerbForm=Part	0	root	_	_
7	by	by	ADP	IN	_	8	case	_	_
8	morning	morning	NOUN	NN	Number=Sing	6	obl	_	SpaceAfter=No
9	,	,	PUNCT	,	_	11	punct	_	_
10	there	there	PRON	EX	PronType=Dem	11	expl	_	SpaceAfter=No
11	's	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	advcl	_	_
12	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	11	nsubj	_	_
13	left	leave	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	12	acl	_	_
14	in	in	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	glass	glass	NOUN	NN	Number=Sing	13	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **go** | present · passive | it |  |  |  | morning | totally *property* | vn disappearance-48.2-1 «NP V»: agent=Theme |
| 2 | **be** | present | nothing |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |
| 3 | **leave** | participle |  |  |  |  |  | in the glass *result* | vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient in glass=Result |

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

<!-- .ven lang=en -->
No, that's a myth, but sugary acid drinks harm teeth over time

<!-- fold The tree, 13 words -->
```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t1:o2:1
# text = No, that's a myth, but sugary acid drinks harm teeth over time
1	No	no	INTJ	UH	Polarity=Neg	6	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	6	punct	_	_
3	that	that	PRON	DT	Number=Sing|PronType=Dem	6	nsubj	_	SpaceAfter=No
4	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	myth	myth	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
7	,	,	PUNCT	,	_	12	punct	_	_
8	but	but	CCONJ	CC	_	12	cc	_	_
9	sugary	sugary	ADJ	JJ	Degree=Pos	11	amod	_	_
10	acid	acid	NOUN	NN	Number=Sing	11	compound	_	_
11	drinks	drink	NOUN	NNS	Number=Plur	12	nsubj	_	_
12	harm	harm	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	parataxis	_	_
13	teeth	tooth	NOUN	NNS	Number=Plur	12	obj	_	_
14	over	over	ADP	IN	_	15	case	_	_
15	time	time	NOUN	NN	Number=Sing	12	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | that | a myth |  |  |  |  | tree rules |
| 2 | **harm** | present | sugary acid drinks | teeth |  |  | time |  | vn amuse-31.1 «NP V NP»: agent=Stimulus tooth=Experiencer |

### Option 3 {#o3}

<!-- .ven lang=en -->
Yes, but only diet cola does it

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t1:o3:1
# text = Yes, but only diet cola does it
1	Yes	yes	INTJ	UH	Polarity=Pos	7	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	7	punct	_	_
3	but	but	CCONJ	CC	_	7	cc	_	_
4	only	only	ADV	RB	_	6	advmod	_	_
5	diet	diet	NOUN	NN	Number=Sing	6	compound	_	_
6	cola	cola	NOUN	NN	Number=Sing	7	nsubj	_	_
7	does	do	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **do** | present | diet cola | it |  |  |  |  | vn act-114-1 «NP V NP»: agent=Agent it=Eventuality |

### Option 4 {#o4}

<!-- .ven lang=en -->
No, cola has no acid in it at all

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:t1:o4:1
# text = No, cola has no acid in it at all
1	No	no	INTJ	UH	Polarity=Neg	4	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	4	punct	_	_
3	cola	cola	NOUN	NN	Number=Sing	4	nsubj	_	_
4	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	no	no	DET	DT	PronType=Neg	6	det	_	_
6	acid	acid	NOUN	NN	Number=Sing	4	obj	_	_
7	in	in	ADP	IN	_	8	case	_	_
8	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nmod	_	_
9	at	at	ADP	IN	_	10	case	_	_
10	all	all	DET	DT	PronType=Tot	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | cola | no acid |  | acid |  | at all | vn birth-28.2-1 «NP V NP»: agent=Agent acid=Patient |

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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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