Exam question 4 · Smells that warn

Identify the principal reason for which cleaning products must never be mixed together.

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: you · What happens: identify, not mix · To what, where: principal reason, cleaning products

This is exam question 4 of lesson 13 «Smells that warn» of the everyday 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	12 mixed	obl
7	cleaning	cleaning	NOUN	Number=Sing	8 products	compound
8	products	product	NOUN	Number=Plur	12 mixed	nsubj:pass
9	must	must	AUX	VerbForm=Fin	12 mixed	aux
10	never	never	ADV	PronType=Neg	12 mixed	advmod
11	be	be	AUX	VerbForm=Inf	12 mixed	aux:pass
12	mixed	mix	VERB	Tense=Past VerbForm=Part Voice=Pass	4 reason	acl:relcl
13	together	together	ADV	_	12 mixed	advmod
14	.	.	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 principal reason					vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent reason=Theme
2	not mix	must · passive		cleaning products				for the principal reason; together property	vn preparing-26.3-1 «NP V NP PP.beneficiary»: subject=Product for which=Beneficiary

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

The containers are rendered unfit for recycling

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 containers	det
2	containers	container	NOUN	Number=Plur	4 rendered	nsubj:pass
3	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 rendered	aux:pass
4	rendered	render	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	unfit	unfit	ADJ	Degree=Pos	4 rendered	xcomp
6	for	for	ADP	_	7 recycling	case
7	recycling	recycling	NOUN	Number=Sing	4 rendered	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	render	present · passive		the containers				for recycling; unfit property	vn give-13.1 «NP V NP»: subject=Theme

Option 2

The mixture becomes excessively sticky

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 mixture	det
2	mixture	mixture	NOUN	Number=Sing	3 becomes	nsubj
3	becomes	become	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	excessively	excessively	ADV	_	5 sticky	advmod
5	sticky	sticky	ADJ	Degree=Pos	3 becomes	xcomp

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	become	present	the mixture					sticky property	vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient

Option 3 · ← Mova's choice · ✓ the right answer

Certain mixtures give off a poisonous gas

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Certain	certain	ADJ	Degree=Pos	2 mixtures	amod
2	mixtures	mixture	NOUN	Number=Plur	3 give	nsubj
3	give	give	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	off	off	ADP	_	3 give	compound:prt
5	a	a	DET	Definite=Ind PronType=Art	7 gas	det
6	poisonous	poisonous	ADJ	Degree=Pos	7 gas	amod
7	gas	gas	NOUN	Number=Sing	3 give	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	give off	present	Certain mixtures	a poisonous gas					vn substance_emission-43.4 «NP V NP»: agent=Source gas=Theme

Option 4

The mixture invariably ceases to clean

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 mixture	det
2	mixture	mixture	NOUN	Number=Sing	4 ceases	nsubj
3	invariably	invariably	ADV	_	4 ceases	advmod
4	ceases	cease	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	to	to	PART	_	6 clean	mark
6	clean	clean	VERB	VerbForm=Inf	4 ceases	xcomp

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	cease	present	the mixture					invariably property	vn stop-55.4-1-1 «NP V S_ING»: agent=Affector clause=Eventuality
2	clean	to-infinitive	the mixture not said here						vn other_cos-45.4 «NP.patient V»: agent=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.

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