Exam question 1 · Olympiad: everyday chemistry detectives ★★★

Identify the conditions under which an iron nail will rust most rapidly.

Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: you, iron nail · What happens: identify, rust · To what, where: conditions

This is exam question 1 of lesson 37 «Olympiad: everyday chemistry detectives ★★★» 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.

The question

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Identify	identify	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	3 conditions	det
3	conditions	condition	NOUN	Number=Plur	1 Identify	obj
4	under	under	ADP	_	5 which	case
5	which	which	PRON	PronType=Rel	10 rust	obl
6	an	a	DET	Definite=Ind PronType=Art	8 nail	det
7	iron	iron	NOUN	Number=Sing	8 nail	compound
8	nail	nail	NOUN	Number=Sing	10 rust	nsubj
9	will	will	AUX	VerbForm=Fin	10 rust	aux
10	rust	rust	VERB	VerbForm=Inf	3 conditions	acl:relcl
11	most	most	ADV	Degree=Sup	12 rapidly	advmod
12	rapidly	rapidly	ADV	_	10 rust	advmod
13	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	identify	imperative	you not said here	the conditions					vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent condition=Theme
2	rust	future	a iron nail			the conditions		rapidly property	vn entity_specific_cos-45.5 «NP.patient V»: agent=Patient

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 · ← Mova's choice · ✓ the right answer

In salty water that is open to the air

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	In	in	ADP	_	3 water	case
2	salty	salty	ADJ	Degree=Pos	3 water	amod
3	water	water	NOUN	Number=Sing	root	root
4	that	that	PRON	PronType=Rel	6 open	nsubj
5	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 open	cop
6	open	open	ADJ	Degree=Pos	3 water	acl:relcl
7	to	to	ADP	_	9 air	case
8	the	the	DET	Definite=Def PronType=Art	9 air	det
9	air	air	NOUN	Number=Sing	6 open	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	salty water					to the air; open property	tree rules

Option 2

In a sealed jar of perfectly dry air

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	In	in	ADP	_	4 jar	case
2	a	a	DET	Definite=Ind PronType=Art	4 jar	det
3	sealed	seal	VERB	Tense=Past VerbForm=Part Voice=Pass	4 jar	amod
4	jar	jar	NOUN	Number=Sing	root	root
5	of	of	ADP	_	8 air	case
6	perfectly	perfectly	ADV	_	7 dry	advmod
7	dry	dry	ADJ	Degree=Pos	8 air	amod
8	air	air	NOUN	Number=Sing	4 jar	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	seal	participle							vn tape-22.4 «NP V ADV-Middle»: agent=Patient

Option 3

In boiled water beneath a layer of oil

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	In	in	ADP	_	3 water	case
2	boiled	boil	VERB	Tense=Past VerbForm=Part Voice=Pass	3 water	amod
3	water	water	NOUN	Number=Sing	root	root
4	beneath	beneath	ADP	_	6 layer	case
5	a	a	DET	Definite=Ind PronType=Art	6 layer	det
6	layer	layer	NOUN	Number=Sing	3 water	nmod
7	of	of	ADP	_	8 oil	case
8	oil	oil	NOUN	Number=Sing	6 layer	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	boil	participle							vn cooking-45.3 «NP.patient V»: agent=Patient

Option 4

In a vacuum with no water present

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	In	in	ADP	_	3 vacuum	case
2	a	a	DET	Definite=Ind PronType=Art	3 vacuum	det
3	vacuum	vacuum	NOUN	Number=Sing	root	root
4	with	with	ADP	_	7 present	case
5	no	no	DET	PronType=Neg	7 present	det
6	water	water	NOUN	Number=Sing	7 present	compound
7	present	present	NOUN	Number=Sing	3 vacuum	nmod

The frames reader finds no event or fact in this sentence.

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/37-olympiad-everyday-chemistry-detectives/e1/