Exam question 1 · Metals and what they're good for

Identify the principal reason for which electrical conductors are customarily fabricated from copper.

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: you · What happens: identify, fabricate · To what, where: principal reason, electrical conductors, copper

This is exam question 1 of lesson 31 «Metals and what they're good for» 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	11 fabricated	obl
7	electrical	electrical	ADJ	Degree=Pos	8 conductors	amod
8	conductors	conductor	NOUN	Number=Plur	11 fabricated	nsubj:pass
9	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	11 fabricated	aux:pass
10	customarily	customarily	ADV	_	11 fabricated	advmod
11	fabricated	fabricate	VERB	Tense=Past VerbForm=Part Voice=Pass	4 reason	acl:relcl
12	from	from	ADP	_	13 copper	case
13	copper	copper	NOUN	Number=Sing	11 fabricated	obl
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	fabricate	present · passive		electrical conductors		copper		for the principal reason; customarily property	vn create-26.4 «NP V NP PP.material»: subject=Result from copper=Material

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

Copper is the most abundant metal in rocks

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Copper	copper	NOUN	Number=Sing	6 metal	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 metal	cop
3	the	the	DET	Definite=Def PronType=Art	6 metal	det
4	most	most	ADV	Degree=Sup	5 abundant	advmod
5	abundant	abundant	ADJ	Degree=Pos	6 metal	amod
6	metal	metal	NOUN	Number=Sing	root	root
7	in	in	ADP	_	8 rocks	case
8	rocks	rock	NOUN	Number=Plur	6 metal	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	Copper	the abundant metal		rocks			tree rules

Option 2

Copper is the least dense of all metals

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Copper	copper	NOUN	Number=Sing	5 dense	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 dense	cop
3	the	the	DET	Definite=Def PronType=Art	5 dense	det
4	least	least	ADV	Degree=Sup	5 dense	advmod
5	dense	dense	ADJ	Degree=Pos	root	root
6	of	of	ADP	_	8 metals	case
7	all	all	DET	PronType=Tot	8 metals	det
8	metals	metal	NOUN	Number=Plur	5 dense	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Copper					of all metals; dense, least property	tree rules

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

Copper is an excellent conductor of electricity

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Copper	copper	NOUN	Number=Sing	5 conductor	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 conductor	cop
3	an	a	DET	Definite=Ind PronType=Art	5 conductor	det
4	excellent	excellent	ADJ	Degree=Pos	5 conductor	amod
5	conductor	conductor	NOUN	Number=Sing	root	root
6	of	of	ADP	_	7 electricity	case
7	electricity	electricity	NOUN	Number=Sing	5 conductor	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	Copper	a excellent conductor				of electricity	tree rules

Option 4

Copper is attracted strongly by magnets

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Copper	copper	NOUN	Number=Sing	3 attracted	nsubj:pass
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 attracted	aux:pass
3	attracted	attract	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	strongly	strongly	ADV	_	3 attracted	advmod
5	by	by	ADP	_	6 magnets	case
6	magnets	magnet	NOUN	Number=Plur	3 attracted	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	attract	present · passive	magnets	Copper				strongly property	vn lure-59.3 «NP V NP»: agent=Agent subject=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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