Exam question 4 · Sounds wrong, but is right

Determine the minimum number of socks which must be withdrawn from a darkened drawer containing socks of two colours only in order to guarantee a matching pair.

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: you · What happens: determine, withdraw, darken, contain, guarantee, match · To what, where: minimum number, darkened drawer, socks, order, matching pair

This is exam question 4 of lesson 182 «Sounds wrong, but is right» of the world 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	Determine	determine	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	4 number	det
3	minimum	minimum	ADJ	Degree=Pos	4 number	amod
4	number	number	NOUN	Number=Sing	1 Determine	obj
5	of	of	ADP	_	6 socks	case
6	socks	sock	NOUN	Number=Plur	4 number	nmod
7	which	which	PRON	PronType=Rel	10 withdrawn	nsubj:pass
8	must	must	AUX	VerbForm=Fin	10 withdrawn	aux
9	be	be	AUX	VerbForm=Inf	10 withdrawn	aux:pass
10	withdrawn	withdraw	VERB	Tense=Past VerbForm=Part Voice=Pass	4 number	acl:relcl
11	from	from	ADP	_	14 drawer	case
12	a	a	DET	Definite=Ind PronType=Art	14 drawer	det
13	darkened	darken	VERB	Tense=Past VerbForm=Part Voice=Pass	14 drawer	amod
14	drawer	drawer	NOUN	Number=Sing	10 withdrawn	obl
15	containing	contain	VERB	Tense=Pres VerbForm=Part	10 withdrawn	advcl
16	socks	sock	NOUN	Number=Plur	15 containing	obj
17	of	of	ADP	_	19 colours	case
18	two	two	NUM	NumForm=Word NumType=Card	19 colours	nummod
19	colours	colour	NOUN	Number=Plur	16 socks	nmod
20	only	only	ADV	_	22 order	advmod
21	in	in	ADP	_	22 order	case
22	order	order	NOUN	Number=Sing	15 containing	obl
23	to	to	PART	_	24 guarantee	mark
24	guarantee	guarantee	VERB	VerbForm=Inf	15 containing	advcl
25	a	a	DET	Definite=Ind PronType=Art	27 pair	det
26	matching	match	VERB	VerbForm=Ger	27 pair	amod
27	pair	pair	NOUN	Number=Sing	24 guarantee	obj
28	.	.	PUNCT	_	1 Determine	punct

#	verb	tense, mood	who	what, whom	where	roles by
1	determine	imperative	you not said here	the minimum number of socks		vn discover-84 «NP V NP»: agent=Agent number=Topic
2	withdraw	must · passive		the minimum number of socks	a darkened drawer	vn remove-10.1 «NP V NP PP»: subject=Theme from drawer=Initial_Location
3	darken	participle				vn other_cos-45.4 «NP.patient V»: agent=Patient
4	contain	gerund		socks of two colours	order	vn fit-54.3 «NP V NP PP.location»: agent=Agent sock=Value in order=Location
5	guarantee	to-infinitive		a matching pair		vn ensure-99 «NP V NP»: agent=Precondition pair=Theme
6	match	gerund				vn amalgamate-22.2-1 «NP V ADVP-Middle»: agent=Patient

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

Four

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Four	four	NUM	NumForm=Word NumType=Card	root	root

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

Option 2

Two

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Two	two	NUM	NumForm=Word NumType=Card	root	root

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

Option 3 · ✓ the right answer

Three

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Three	three	NUM	NumForm=Word NumType=Card	root	root

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

Option 4

Twenty

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Twenty	twenty	NUM	NumForm=Word NumType=Card	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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/world/182-sounds-wrong-but-is-right/e4/