Exam question 1 · Cleaning chemicals and safety at home

Identify the principal reason for which the admixture of bleach with an acidic lavatory cleaner is expressly prohibited.

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: you · What happens: identify, prohibit, admix · To what, where: principal reason, admixture, bleach

This is exam question 1 of lesson 25 «Cleaning chemicals and safety at home» 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	4 reason	det
3	principal	principal	ADJ	Degree=Pos	4 reason	amod
4	reason	reason	NOUN	Number=Sing	1 Identify	obj
5	for	for	ADP	_	6 which	case
6	which	which	PRON	PronType=Rel	18 prohibited	obl
7	the	the	DET	Definite=Def PronType=Art	8 admixture	det
8	admixture	admixture	NOUN	Number=Sing	18 prohibited	nsubj:pass
9	of	of	ADP	_	10 bleach	case
10	bleach	bleach	NOUN	Number=Sing	8 admixture	nmod
11	with	with	ADP	_	15 cleaner	case
12	an	a	DET	Definite=Ind PronType=Art	15 cleaner	det
13	acidic	acidic	ADJ	Degree=Pos	15 cleaner	amod
14	lavatory	lavatory	NOUN	Number=Sing	15 cleaner	compound
15	cleaner	cleaner	NOUN	Number=Sing	10 bleach	nmod
16	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	18 prohibited	aux:pass
17	expressly	expressly	ADV	_	18 prohibited	advmod
18	prohibited	prohibit	VERB	Tense=Past VerbForm=Part Voice=Pass	4 reason	acl:relcl
19	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	other	roles by
1	identify	imperative	you not said here	the principal reason		vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent reason=Theme
2	prohibit	present · passive		the admixture of bleach with a acidic lavatory cleaner	for the principal reason; expressly property	vn forbid-64.4-1 «NP V NP»: subject=Theme
3	admix			bleach with a acidic lavatory cleaner		nom admixture «state transitive»: of=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 admixture produces an unpleasant colour

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 admixture	det
2	admixture	admixture	NOUN	Number=Sing	3 produces	nsubj
3	produces	produce	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	an	a	DET	Definite=Ind PronType=Art	6 colour	det
5	unpleasant	unpleasant	ADJ	Degree=Pos	6 colour	amod
6	colour	colour	NOUN	Number=Sing	3 produces	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	produce	present	the admixture	a unpleasant colour					vn create-26.4 «NP V NP»: agent=Agent colour=Result

Option 2

The admixture neutralises all cleaning action

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 admixture	det
2	admixture	admixture	NOUN	Number=Sing	3 neutralises	nsubj
3	neutralises	neutralis	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	all	all	DET	PronType=Tot	6 action	det
5	cleaning	clean	VERB	VerbForm=Ger	6 action	amod
6	action	action	NOUN	Number=Sing	3 neutralises	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	neutralis	present	the admixture	all cleaning action					tree rules
2	clean	gerund							vn other_cos-45.4 «NP.patient V»: agent=Patient

Option 3 · ✓ the right answer

The admixture liberates a poisonous gas

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 admixture	det
2	admixture	admixture	NOUN	Number=Sing	3 liberates	nsubj
3	liberates	liberate	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	a	a	DET	Definite=Ind PronType=Art	6 gas	det
5	poisonous	poisonous	ADJ	Degree=Pos	6 gas	amod
6	gas	gas	NOUN	Number=Sing	3 liberates	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	liberate	present	the admixture	a poisonous gas					vn steal-10.5 «NP V NP»: agent=Agent gas=Theme

Option 4

The admixture generates excessive foam

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 admixture	det
2	admixture	admixture	NOUN	Number=Sing	3 generates	nsubj
3	generates	generate	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	excessive	excessive	ADJ	Degree=Pos	5 foam	amod
5	foam	foam	NOUN	Number=Sing	3 generates	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	generate	present	the admixture	excessive foam					vn birth-28.2-1 «NP V NP»: agent=Agent foam=Patient

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/25-cleaning-chemicals-safety/e1/