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Exam question 4 · Explorers and how the world was mapped

It is given that the Earth turns 15 degrees of longitude every hour. Determine the difference in longitude between two places whose local times differ by two hours.

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · Who acts: Earth, you, local times · What happens: give, turn, determine, differ · To what, where: It, 15 degrees, difference, longitude

This is exam question 4 of lesson 98 «Explorers and how the world was mapped» 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

Sentence 1: It is given that the Earth turns 15 degrees of longitude every hour.

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	_	7 turns	mark
5	the	the	DET	Definite=Def PronType=Art	6 Earth	det
6	Earth	Earth	PROPN	Number=Sing	7 turns	nsubj
7	turns	turn	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 given	advcl
8	15	15	NUM	NumForm=Digit NumType=Card	9 degrees	nummod
9	degrees	degree	NOUN	Number=Plur	7 turns	obj
10	of	of	ADP	_	11 longitude	case
11	longitude	longitude	NOUN	Number=Sing	9 degrees	nmod
12	every	every	DET	PronType=Tot	13 hour	det
13	hour	hour	NOUN	Number=Sing	7 turns	obl:unmarked
14	.	.	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	turn	present	the Earth	15 degrees of longitude			hour		vn roll-51.3.1 «NP V NP.theme»: agent=Agent degree=Theme

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 difference in longitude between two places whose local times differ by two hours.

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	3 difference	det
3	difference	difference	NOUN	Number=Sing	1 Determine	obj
4	in	in	ADP	_	5 longitude	case
5	longitude	longitude	NOUN	Number=Sing	1 Determine	obl
6	between	between	ADP	_	8 places	case
7	two	two	NUM	NumForm=Word NumType=Card	8 places	nummod
8	places	place	NOUN	Number=Plur	5 longitude	nmod
9	whose	whose	PRON	Poss=Yes PronType=Rel	11 times	nmod:poss
10	local	local	ADJ	Degree=Pos	11 times	amod
11	times	time	NOUN	Number=Plur	12 differ	nsubj
12	differ	differ	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	8 places	acl:relcl
13	by	by	ADP	_	15 hours	case
14	two	two	NUM	NumForm=Word NumType=Card	15 hours	nummod
15	hours	hour	NOUN	Number=Plur	12 differ	obl
16	.	.	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 difference		longitude between two places			vn discover-84 «NP V NP»: agent=Agent difference=Topic
2	differ	present	local times				hour		vn correspond-36.1 «NP V»: agent=Agent

The options

Option 1 · ← Mova's choice

Seven and a half degrees

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Seven	seven	NUM	NumForm=Word NumType=Card	root	root
2	and	and	CCONJ	_	5 degrees	cc
3	a	a	DET	Definite=Ind PronType=Art	4 half	det
4	half	half	NOUN	Number=Sing NumForm=Word NumType=Frac	5 degrees	compound
5	degrees	degree	NOUN	Number=Plur	1 Seven	conj

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

Option 2 · ✓ the right answer

Thirty degrees

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Thirty	thirty	NUM	NumForm=Word NumType=Card	2 degrees	nummod
2	degrees	degree	NOUN	Number=Plur	root	root

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

Option 3

Fifteen degrees

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Fifteen	fifteen	NUM	NumForm=Word NumType=Card	2 degrees	nummod
2	degrees	degree	NOUN	Number=Plur	root	root

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

Option 4

Sixty degrees

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Sixty	sixty	NUM	NumForm=Word NumType=Card	2 degrees	nummod
2	degrees	degree	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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/world/98-explorers-mapping-the-world/e4/