Test 6 · ★ · Tarnish and how metals change

If you stored silver forks in a box with rubber bands and boiled eggs, what would happen?

Mova's choice: option 4 · The right answer: option 2 · wrong ✗ · Who acts: you, box · What happens: store, boil, happen · To what, where: silver forks, box

This is test 6 · ★ 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.

The question

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	If	if	SCONJ	_	3 stored	mark
2	you	you	PRON	Case=Nom Person=2 PronType=Prs	3 stored	nsubj
3	stored	store	VERB	Mood=Ind Number=Sing Person=2 Tense=Past VerbForm=Fin	root	root
4	silver	silver	NOUN	Number=Sing	5 forks	compound
5	forks	fork	NOUN	Number=Plur	3 stored	obj
6	in	in	ADP	_	8 box	case
7	a	a	DET	Definite=Ind PronType=Art	8 box	det
8	box	box	NOUN	Number=Sing	3 stored	obl
9	with	with	ADP	_	11 bands	case
10	rubber	rubber	NOUN	Number=Sing	11 bands	compound
11	bands	band	NOUN	Number=Plur	8 box	nmod
12	and	and	CCONJ	_	14 eggs	cc
13	boiled	boil	VERB	Tense=Past VerbForm=Part Voice=Pass	14 eggs	amod
14	eggs	egg	NOUN	Number=Plur	11 bands	conj
15	,	,	PUNCT	_	18 happen	punct
16	what	what	PRON	PronType=Int	18 happen	nsubj
17	would	would	AUX	VerbForm=Fin	18 happen	aux
18	happen	happen	VERB	VerbForm=Inf	8 box	conj
19	?	?	PUNCT	_	3 stored	punct

#	verb	tense, mood	who	what, whom	where	roles by
1	store	past	you	silver forks	a box with rubber bands and boiled eggs	vn keep-15.2 «NP V NP PP.location»: agent=Agent fork=Theme in box=Location
2	boil	participle				vn cooking-45.3 «NP.patient V»: agent=Patient
3	happen	would	a box with rubber bands and boiled eggs			vn occur-48.3-1 «NP V»: agent=Theme

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

Option 1

They would slowly turn green like an old statue in a park

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	4 turn	nsubj
2	would	would	AUX	VerbForm=Fin	4 turn	aux
3	slowly	slowly	ADV	_	4 turn	advmod
4	turn	turn	VERB	VerbForm=Inf	root	root
5	green	green	ADJ	Degree=Pos	4 turn	xcomp
6	like	like	ADP	_	9 statue	case
7	an	a	DET	Definite=Ind PronType=Art	9 statue	det
8	old	old	ADJ	Degree=Pos	9 statue	amod
9	statue	statue	NOUN	Number=Sing	4 turn	obl
10	in	in	ADP	_	12 park	case
11	a	a	DET	Definite=Ind PronType=Art	12 park	det
12	park	park	NOUN	Number=Sing	4 turn	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	turn	would	They			a park		like a old statue; green, slowly property	vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme in park=Trajectory

Option 2 · ✓ the right answer

They would tarnish faster from the sulphur gases

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 tarnish	nsubj
2	would	would	AUX	VerbForm=Fin	3 tarnish	aux
3	tarnish	tarnish	VERB	VerbForm=Inf	root	root
4	faster	fast	ADV	Degree=Cmp	3 tarnish	advmod
5	from	from	ADP	_	8 gases	case
6	the	the	DET	Definite=Def PronType=Art	8 gases	det
7	sulphur	sulphur	NOUN	Number=Sing	8 gases	compound
8	gases	gas	NOUN	Number=Plur	3 tarnish	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	tarnish	would	They			the sulphur gases		fast property	vn entity_specific_cos-45.5 «NP.patient V»: agent=Patient

Option 3

They would start rusting orange

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 start	nsubj
2	would	would	AUX	VerbForm=Fin	3 start	aux
3	start	start	VERB	VerbForm=Inf	root	root
4	rusting	rust	VERB	VerbForm=Ger	3 start	xcomp
5	orange	orange	NOUN	Number=Sing	4 rusting	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	start	would	They						vn begin-55.1-1-1 «NP V S_ING»: agent=Agent clause=Eventuality
2	rust	gerund	They not said here	orange					tree rules

Option 4 · ← Mova's choice

They would stay shiny forever

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 stay	nsubj
2	would	would	AUX	VerbForm=Fin	3 stay	aux
3	stay	stay	VERB	VerbForm=Inf	root	root
4	shiny	shiny	ADJ	Degree=Pos	3 stay	xcomp
5	forever	forever	ADV	_	3 stay	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	stay	would	They					forever, shiny property	vn exist-47.1 «NP V»: agent=Theme

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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t6/