Exam question 2 · Recycling: giving materials a second life

Which of the following statements most accurately characterises the recycling of aluminium?

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · What happens: follow, characteris · To what, where: recycling

This is exam question 2 of lesson 32 «Recycling: giving materials a second life» 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	Which	which	PRON	PronType=Rel	8 characterises	nsubj
2	of	of	ADP	_	5 statements	case
3	the	the	DET	Definite=Def PronType=Art	5 statements	det
4	following	follow	VERB	VerbForm=Ger	5 statements	amod
5	statements	statement	NOUN	Number=Plur	8 characterises	obl
6	most	most	ADV	Degree=Sup	7 accurately	advmod
7	accurately	accurately	ADV	_	8 characterises	advmod
8	characterises	characteris	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
9	the	the	DET	Definite=Def PronType=Art	10 recycling	det
10	recycling	recycling	NOUN	Number=Sing	8 characterises	obj
11	of	of	ADP	_	12 aluminium	case
12	aluminium	aluminium	NOUN	Number=Sing	10 recycling	nmod
13	?	?	PUNCT	_	8 characterises	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	follow	gerund							vn occur-48.3-1 «NP V»: agent=Theme
2	characteris	present		the recycling of aluminium				of the following statements; accurately property	tree rules

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

It requires more energy than production from ore

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 requires	nsubj
2	requires	require	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	more	more	ADJ	Degree=Cmp	4 energy	amod
4	energy	energy	NOUN	Number=Sing	2 requires	obj
5	than	than	ADP	_	6 production	case
6	production	production	NOUN	Number=Sing	2 requires	obl
7	from	from	ADP	_	8 ore	case
8	ore	ore	NOUN	Number=Sing	2 requires	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	require	present	It	more energy		ore		than production	vn require-103-1 «NP V NP PP.source»: agent=Theme energy=Precondition from ore=Source

Option 2

It can be performed only once

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	4 performed	nsubj:pass
2	can	can	AUX	VerbForm=Fin	4 performed	aux
3	be	be	AUX	VerbForm=Inf	4 performed	aux:pass
4	performed	perform	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	only	only	ADV	_	6 once	advmod
6	once	once	ADV	NumForm=Word NumType=Mult	4 performed	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	perform	can · passive		It				once property	vn performance-26.7 «NP V NP»: subject=Theme

Option 3 · ✓ the right answer

It requires far less energy than production from ore

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 requires	nsubj
2	requires	require	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	far	far	ADV	Degree=Pos	4 less	advmod
4	less	less	ADJ	Degree=Cmp	5 energy	amod
5	energy	energy	NOUN	Number=Sing	2 requires	obj
6	than	than	ADP	_	7 production	case
7	production	production	NOUN	Number=Sing	2 requires	obl
8	from	from	ADP	_	9 ore	case
9	ore	ore	NOUN	Number=Sing	2 requires	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	require	present	It	less energy		ore		than production	vn require-103-1 «NP V NP PP.source»: agent=Theme energy=Precondition from ore=Source

Option 4

It converts the metal into glass

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 converts	nsubj
2	converts	convert	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 metal	det
4	metal	metal	NOUN	Number=Sing	2 converts	obj
5	into	into	ADP	_	6 glass	case
6	glass	glass	NOUN	Number=Sing	2 converts	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	convert	present	It	the metal				into glass result	vn turn-26.6.1-1 «NP V NP.patient PP.result»: agent=Agent metal=Patient into glass=Result

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/32-recycling-second-life/e2/