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Exam question 2 · Loot boxes and "free" skins

It is given that a desired article is obtainable with a probability of one per cent per attempt, each attempt costing one pound. Determine the approximate expenditure required on average.

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: desired article, attempt, you · What happens: give, desire, be, cost, determine, require · To what, where: It, one pound, approximate expenditure, average

This is exam question 2 of lesson 17 «Loot boxes and "free" skins» of the money 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

Sentence 1: It is given that a desired article is obtainable with a probability of one per cent per attempt, each attempt costing one pound.

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	3 given	nsubj:pass
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 given	aux:pass
3	given	give	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	that	that	SCONJ	_	9 obtainable	mark
5	a	a	DET	Definite=Ind PronType=Art	7 article	det
6	desired	desire	VERB	Tense=Past VerbForm=Part Voice=Pass	7 article	amod
7	article	article	NOUN	Number=Sing	9 obtainable	nsubj
8	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	9 obtainable	cop
9	obtainable	obtainable	ADJ	Degree=Pos	3 given	advcl
10	with	with	ADP	_	12 probability	case
11	a	a	DET	Definite=Ind PronType=Art	12 probability	det
12	probability	probability	NOUN	Number=Sing	9 obtainable	obl
13	of	of	ADP	_	16 cent	case
14	one	one	NUM	NumForm=Word NumType=Card	16 cent	nummod
15	per	per	NOUN	Number=Sing	16 cent	compound
16	cent	cent	NOUN	Number=Sing	12 probability	nmod
17	per	per	ADP	_	18 attempt	case
18	attempt	attempt	NOUN	Number=Sing	16 cent	nmod
19	,	,	PUNCT	_	21 attempt	punct
20	each	each	DET	PronType=Tot	21 attempt	det
21	attempt	attempt	NOUN	Number=Sing	18 attempt	appos
22	costing	cost	VERB	VerbForm=Ger	21 attempt	acl
23	one	one	NUM	NumForm=Word NumType=Card	24 pound	nummod
24	pound	pound	NOUN	Number=Sing	22 costing	obj
25	.	.	PUNCT	_	3 given	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	give	present · passive		It					vn give-13.1-1 «NP V NP»: subject=Theme
2	desire	participle							vn want-32.1-1-1 «NP V NP S_INF»: agent=Pivot
3	is	present	a desired article					with a probability of one per cent per attempt; obtainable property	tree rules
4	cost	gerund	each attempt not said here	one pound					vn cost-54.2 «NP V NP.value»: agent=Theme pound=Value

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.

Sentence 2: Determine the approximate expenditure required on average.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Determine	determine	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	4 expenditure	det
3	approximate	approximate	ADJ	Degree=Pos	4 expenditure	amod
4	expenditure	expenditure	NOUN	Number=Sing	1 Determine	obj
5	required	require	VERB	Tense=Past VerbForm=Part Voice=Pass	4 expenditure	acl
6	on	on	ADP	_	7 average	case
7	average	average	NOUN	Number=Sing	5 required	obl
8	.	.	PUNCT	_	1 Determine	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	determine	imperative	you not said here	the approximate expenditure					vn discover-84 «NP V NP»: agent=Agent expenditure=Topic
2	require	participle		the approximate expenditure not said here		average			vn require-103-1 «NP V NP S_INF»: agent=Theme

The options

Option 1 · ← Mova's choice

Ten pounds

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ten	ten	NUM	NumForm=Word NumType=Card	2 pounds	nummod
2	pounds	pound	NOUN	Number=Plur	root	root

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

Option 2

One thousand pounds

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	One	one	NUM	NumForm=Word NumType=Card	2 thousand	compound
2	thousand	thousand	NUM	NumForm=Word NumType=Card	3 pounds	nummod
3	pounds	pound	NOUN	Number=Plur	root	root

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

Option 3

One pound

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	One	one	NUM	NumForm=Word NumType=Card	2 pound	nummod
2	pound	pound	NOUN	Number=Sing	root	root

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

Option 4 · ✓ the right answer

One hundred pounds

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	One	one	NUM	NumForm=Word NumType=Card	2 hundred	compound
2	hundred	hundred	NUM	NumForm=Word NumType=Card	3 pounds	nummod
3	pounds	pound	NOUN	Number=Plur	root	root

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

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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