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Test 11 · ★★★ · Winds, monsoons and ocean currents

Big storms north of the equator spin anticlockwise and south of it clockwise. What causes the difference?

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · What happens: cause · To what, where: difference

This is test 11 · ★★★ of lesson 22 «Winds, monsoons and ocean currents» of the geography course of Mova's primary school. 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: Big storms north of the equator spin anticlockwise and south of it clockwise.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Big	big	ADJ	Degree=Pos	2 storms	amod
2	storms	storm	NOUN	Number=Plur	root	root
3	north	north	ADV	_	2 storms	advmod
4	of	of	ADP	_	7 spin	case
5	the	the	DET	Definite=Def PronType=Art	7 spin	det
6	equator	equator	NOUN	Number=Sing	7 spin	compound
7	spin	spin	NOUN	Number=Sing	3 north	obl
8	anticlockwise	anticlockwise	ADV	_	3 north	conj
9	and	and	CCONJ	_	10 south	cc
10	south	south	ADV	_	3 north	conj
11	of	of	ADP	_	12 it	case
12	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	3 north	obl
13	clockwise	clockwise	ADV	_	3 north	advmod
14	.	.	PUNCT	_	2 storms	punct

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

Sentence 2: What causes the difference?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	2 causes	nsubj
2	causes	cause	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 difference	det
4	difference	difference	NOUN	Number=Sing	2 causes	obj
5	?	?	PUNCT	_	2 causes	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	cause	present		the difference					vn engender-27.1-1 «NP V NP»: agent=Precondition difference=Patient

The options

Option 1 · ← Mova's choice

The water is much saltier south of the equator

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 water	det
2	water	water	NOUN	Number=Sing	5 saltier	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 saltier	cop
4	much	much	ADV	_	5 saltier	advmod
5	saltier	salty	ADJ	Degree=Cmp	root	root
6	south	south	ADV	_	5 saltier	advmod
7	of	of	ADP	_	9 equator	case
8	the	the	DET	Definite=Def PronType=Art	9 equator	det
9	equator	equator	NOUN	Number=Sing	5 saltier	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the water					of the equator; salty, south property	tree rules

Option 2

The Sun shines on the two halves from opposite sides

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 Sun	det
2	Sun	Sun	PROPN	Number=Sing	3 shines	nsubj
3	shines	shine	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	on	on	ADP	_	7 halves	case
5	the	the	DET	Definite=Def PronType=Art	7 halves	det
6	two	two	NUM	NumForm=Word NumType=Card	7 halves	nummod
7	halves	half	NOUN	Number=Plur	3 shines	obl
8	from	from	ADP	_	10 sides	case
9	opposite	opposite	ADJ	Degree=Pos	10 sides	amod
10	sides	side	NOUN	Number=Plur	7 halves	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	shine	present	the Sun			the two halves from opposite sides			vn light_emission-43.1 «NP V PP.location»: agent=Theme on half=Location

Option 3

The Moon pulls storms in opposite directions in each half of the world

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 Moon	det
2	Moon	Moon	PROPN	Number=Sing	3 pulls	nsubj
3	pulls	pull	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	storms	storm	NOUN	Number=Plur	3 pulls	obj
5	in	in	ADP	_	7 directions	case
6	opposite	opposite	ADJ	Degree=Pos	7 directions	amod
7	directions	direction	NOUN	Number=Plur	3 pulls	obl
8	in	in	ADP	_	10 half	case
9	each	each	DET	PronType=Tot	10 half	det
10	half	half	NOUN	Number=Sing NumForm=Word NumType=Frac	7 directions	nmod
11	of	of	ADP	_	13 world	case
12	the	the	DET	Definite=Def PronType=Art	13 world	det
13	world	world	NOUN	Number=Sing	10 half	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pull	present	the Moon	storms		opposite directions in each half of the world			vn push-12-1 «NP V NP»: agent=Agent storm=Theme

Option 4 · ✓ the right answer

Earth's spin bends moving air different ways in each half

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Earth	Earth	PROPN	Number=Sing	3 spin	nmod:poss
2	's	's	PART	_	1 Earth	case
3	spin	spin	NOUN	Number=Sing	4 bends	nsubj
4	bends	bend	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	moving	move	VERB	VerbForm=Ger	4 bends	xcomp
6	air	air	NOUN	Number=Sing	5 moving	obj
7	different	different	ADJ	Degree=Pos	8 ways	amod
8	ways	way	NOUN	Number=Plur	5 moving	obl
9	in	in	ADP	_	11 half	case
10	each	each	DET	PronType=Tot	11 half	det
11	half	half	NOUN	Number=Sing NumForm=Word NumType=Frac	5 moving	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	bend	present	Earth's spin						tree rules
2	move	gerund	Earth's spin not said here	air		each half		different ways obl	vn roll-51.3.1 «NP V NP.theme»: agent=Agent air=Theme
3	spin		Earth						nom spin «event transitive»: poss=agent

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/geography/22-winds-monsoons-and-ocean-currents/t11/