Exam question 2 · Elements and the famous members of the periodic table

Identify the principal reason for which gold retains its lustre over millennia.

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: you, gold · What happens: identify, retain · To what, where: principal reason, lustre, millennia

This is exam question 2 of lesson 2 «Elements and the famous members of the periodic table» 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	8 retains	obl
7	gold	gold	NOUN	Number=Sing	8 retains	nsubj
8	retains	retain	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 reason	acl:relcl
9	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	10 lustre	nmod:poss
10	lustre	lustre	NOUN	Number=Sing	8 retains	obj
11	over	over	ADP	_	12 millennia	case
12	millennia	millennia	NOUN	Number=Sing	8 retains	obl
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 principal reason					vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent reason=Theme
2	retain	present	gold	gold's lustre		millennia		for the principal reason	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

The continual polishing it receives from its owners

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 continual	det
2	continual	continual	NOUN	Number=Sing	5 receives	nsubj
3	polishing	polish	VERB	VerbForm=Ger	2 continual	acl
4	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	3 polishing	obj
5	receives	receive	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
6	from	from	ADP	_	8 owners	case
7	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	8 owners	nmod:poss
8	owners	owner	NOUN	Number=Plur	5 receives	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	polish	gerund	the continual not said here	continual					vn butter-9.9 «NP V NP.destination»: agent=Agent it=Destination
2	receive	present	the continual			continual's owners			vn obtain-13.5.2 «NP V NP PP.source»: agent=Agent from owner=Source

Option 2

The exceptional mass of its constituent atoms

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 mass	det
2	exceptional	exceptional	ADJ	Degree=Pos	3 mass	amod
3	mass	mass	NOUN	Number=Sing	root	root
4	of	of	ADP	_	7 atoms	case
5	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	7 atoms	nmod:poss
6	constituent	constituent	NOUN	Number=Sing	7 atoms	compound
7	atoms	atom	NOUN	Number=Plur	3 mass	nmod

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

Option 3 · ✓ the right answer

Its negligible reactivity with atmospheric oxygen and with water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	3 reactivity	nmod:poss
2	negligible	negligible	ADJ	Degree=Pos	3 reactivity	amod
3	reactivity	reactivity	NOUN	Number=Sing	root	root
4	with	with	ADP	_	6 oxygen	case
5	atmospheric	atmospheric	NOUN	Number=Sing	6 oxygen	compound
6	oxygen	oxygen	NOUN	Number=Sing	3 reactivity	nmod
7	and	and	CCONJ	_	9 water	cc
8	with	with	ADP	_	9 water	case
9	water	water	NOUN	Number=Sing	3 reactivity	conj

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

Option 4

Its concealment beneath a transparent protective lacquer applied by goldsmiths

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	2 concealment	nmod:poss
2	concealment	concealment	NOUN	Number=Sing	8 applied	nsubj
3	beneath	beneath	ADP	_	7 lacquer	case
4	a	a	DET	Definite=Ind PronType=Art	7 lacquer	det
5	transparent	transparent	ADJ	Degree=Pos	7 lacquer	amod
6	protective	protective	ADJ	Degree=Pos	7 lacquer	amod
7	lacquer	lacquer	NOUN	Number=Sing	2 concealment	nmod
8	applied	apply	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
9	by	by	ADP	_	10 goldsmiths	case
10	goldsmiths	goldsmith	NOUN	Number=Plur	8 applied	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	apply	participle	Its concealment beneath a transparent protective lacquer					by goldsmiths	vn put-9.1-1 «NP V NP PP.destination»: agent=Agent by goldsmith=Destination
2	conceal		Its = it					beneath a transparent protective lacquer	nom concealment «state transitive»: poss=agent beneath=obl

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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