---
title: Determine which of the following assertions concerning cola is consi… — Tarnish and how metals change · tree and pragmatics
description: Determine which of the following assertions concerning cola is consistent with the established facts. Exam question 4 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 choi
---

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# Exam question 4 · Tarnish and how metals change

<!-- .ven lang=en -->
Determine which of the following assertions concerning cola is consistent with the established facts.

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 1 · wrong ✗ · **Who acts:** you, following assertions · **What happens:** determine, follow, concern, be, establish · **To what, where:** cola

<!-- .vabout -->
This is exam question 4 of lesson 14 «Tarnish and how metals change» of the chemistry course of Mova's primary school, asked in stiff, formal language. 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/#e4).

## The question {#question}

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:e4:1
# text = Determine which of the following assertions concerning cola is consistent with the established facts.
1	Determine	determine	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	which	which	PRON	WDT	PronType=Rel	10	nsubj	_	_
3	of	of	ADP	IN	_	6	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	following	follow	VERB	VBG	VerbForm=Ger	6	amod	_	_
6	assertions	assertion	NOUN	NNS	Number=Plur	2	nmod	_	_
7	concerning	concern	VERB	VBG	VerbForm=Ger	6	acl	_	_
8	cola	cola	NOUN	NN	Number=Sing	7	obj	_	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	_
10	consistent	consistent	ADJ	JJ	Degree=Pos	1	ccomp	_	_
11	with	with	ADP	IN	_	14	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
13	established	establish	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	14	amod	_	_
14	facts	fact	NOUN	NNS	Number=Plur	10	obl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **determine** | imperative | you *not said here* |  |  |  |  |  | vn conjecture-29.5 «NP V that S»: agent=Agent |
| 2 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 3 | **concern** | gerund | the following assertions *not said here* | cola |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus cola=Experiencer |
| 4 | **is** | present |  |  |  |  |  | with the established facts; consistent *property* | tree rules |
| 5 | **establish** | participle |  |  |  |  |  |  | vn indicate-78-1-1 «NP V NP to be NP»: agent=Pivot |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
It does not dissolve a tooth overnight, yet sugary acidic drinks harm teeth over time

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:e4:o1:1
# text = It does not dissolve a tooth overnight, yet sugary acidic drinks harm teeth over time
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	dissolve	dissolve	VERB	VB	VerbForm=Inf	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	tooth	tooth	NOUN	NN	Number=Sing	4	obj	_	_
7	overnight	overnight	ADV	RB	_	4	advmod	_	SpaceAfter=No
8	,	,	PUNCT	,	_	13	punct	_	_
9	yet	yet	CCONJ	CC	_	13	cc	_	_
10	sugary	sugary	ADJ	JJ	Degree=Pos	12	amod	_	_
11	acidic	acidic	ADJ	JJ	Degree=Pos	12	amod	_	_
12	drinks	drink	NOUN	NNS	Number=Plur	13	nsubj	_	_
13	harm	harm	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	parataxis	_	_
14	teeth	tooth	NOUN	NNS	Number=Plur	13	obj	_	_
15	over	over	ADP	IN	_	16	case	_	_
16	time	time	NOUN	NN	Number=Sing	13	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **dissolve** | present · do-support | It | a tooth |  |  |  | overnight *property* | vn break-45.1 «NP V NP»: agent=Agent tooth=Patient |
| 2 | **harm** | present | sugary acidic drinks | teeth |  |  | time |  | vn amuse-31.1 «NP V NP»: agent=Stimulus tooth=Experiencer |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
It contains no acid whatsoever and is harmless to teeth

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:e4:o2:1
# text = It contains no acid whatsoever and is harmless to teeth
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	contains	contain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	no	no	DET	DT	PronType=Neg	4	det	_	_
4	acid	acid	NOUN	NN	Number=Sing	2	obj	_	_
5	whatsoever	whatsoever	ADV	RB	_	2	advmod	_	_
6	and	and	CCONJ	CC	_	8	cc	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	harmless	harmless	ADJ	JJ	Degree=Pos	2	conj	_	_
9	to	to	ADP	IN	_	10	case	_	_
10	teeth	tooth	NOUN	NNS	Number=Plur	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **contain** | present | It | no acid |  |  |  | whatsoever *property* | vn comprise-107.2-2 «NP V NP»: agent=Pivot acid=Theme |
| 2 | **is** | present |  |  |  |  |  | to teeth; harmless *property* | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
It dissolves a human tooth completely within a single night

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:e4:o3:1
# text = It dissolves a human tooth completely within a single night
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	dissolves	dissolve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	human	human	ADJ	JJ	Degree=Pos	5	amod	_	_
5	tooth	tooth	NOUN	NN	Number=Sing	2	obj	_	_
6	completely	completely	ADV	RB	_	2	advmod	_	_
7	within	within	ADP	IN	_	10	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	single	single	ADJ	JJ	Degree=Pos	10	amod	_	_
10	night	night	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dissolve** | present | It | a human tooth |  |  | night | completely *property* | vn break-45.1 «NP V NP»: agent=Agent tooth=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
It strengthens tooth enamel when consumed daily

```conllu
# sent_id = question:chemistry:14-tarnish-and-how-metals-change:e4:o4:1
# text = It strengthens tooth enamel when consumed daily
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	strengthens	strengthen	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	tooth	tooth	NOUN	NN	Number=Sing	4	compound	_	_
4	enamel	enamel	NOUN	NN	Number=Sing	2	obj	_	_
5	when	when	ADV	WRB	PronType=Int	6	advmod	_	_
6	consumed	consume	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	advcl	_	_
7	daily	daily	ADV	RB	_	6	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **strengthen** | present | It | tooth enamel |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent enamel=Patient |
| 2 | **consume** | participle |  |  |  |  |  | daily *property* | vn consume-66 «NP V NP»: agent=Agent |

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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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