Exam question 2 · Water, deserts and the shape of the land

Identify the principal reason for which the direction of rotation of water draining from a domestic basin is not determined by the Coriolis effect.

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: you, direction, Coriolis effect · What happens: identify, drain, not determine · To what, where: principal reason, domestic basin, direction

This is exam question 2 of lesson 16 «Water, deserts and the shape of the land» of the myths 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	20 determined	obl
7	the	the	DET	Definite=Def PronType=Art	8 direction	det
8	direction	direction	NOUN	Number=Sing	20 determined	nsubj:pass
9	of	of	ADP	_	10 rotation	case
10	rotation	rotation	NOUN	Number=Sing	8 direction	nmod
11	of	of	ADP	_	12 water	case
12	water	water	NOUN	Number=Sing	8 direction	nmod
13	draining	drain	VERB	VerbForm=Ger	8 direction	acl
14	from	from	ADP	_	17 basin	case
15	a	a	DET	Definite=Ind PronType=Art	17 basin	det
16	domestic	domestic	ADJ	Degree=Pos	17 basin	amod
17	basin	basin	NOUN	Number=Sing	13 draining	obl
18	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	20 determined	aux:pass
19	not	not	PART	Polarity=Neg	20 determined	advmod
20	determined	determine	VERB	Tense=Past VerbForm=Part Voice=Pass	4 reason	acl:relcl
21	by	by	ADP	_	24 effect	case
22	the	the	DET	Definite=Def PronType=Art	24 effect	det
23	Coriolis	Coriolis	PROPN	Number=Sing	24 effect	compound
24	effect	effect	NOUN	Number=Sing	20 determined	obl
25	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	where	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	drain	gerund	the direction of rotation of water not said here		a domestic basin		vn clear-10.3-1 «NP V PP.source»: agent=Theme from basin=Source
3	not determine	present · passive	the Coriolis effect	the direction of rotation of water		for the principal reason	vn discover-84 «NP V NP»: agent=Agent subject=Topic

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

The effect operates solely upon salt water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 effect	det
2	effect	effect	NOUN	Number=Sing	3 operates	nsubj
3	operates	operate	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	solely	solely	ADV	_	3 operates	advmod
5	upon	upon	ADP	_	7 water	case
6	salt	salt	NOUN	Number=Sing	7 water	compound
7	water	water	NOUN	Number=Sing	3 operates	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	operate	present	the effect					upon salt water; solely property	vn function-105.2.1-1 «NP V»: agent=Theme

Option 2

The effect ceases in the hours of darkness

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 effect	det
2	effect	effect	NOUN	Number=Sing	3 ceases	nsubj
3	ceases	cease	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	in	in	ADP	_	6 hours	case
5	the	the	DET	Definite=Def PronType=Art	6 hours	det
6	hours	hour	NOUN	Number=Plur	3 ceases	obl
7	of	of	ADP	_	8 darkness	case
8	darkness	darkness	NOUN	Number=Sing	6 hours	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	cease	present	the effect				hour		vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality

Option 3 · ← Mova's choice · ✓ the right answer

The effect is far too weak at so small a scale

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 effect	det
2	effect	effect	NOUN	Number=Sing	6 weak	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 weak	cop
4	far	far	ADV	Degree=Pos	6 weak	advmod
5	too	too	ADV	_	6 weak	advmod
6	weak	weak	ADJ	Degree=Pos	root	root
7	at	at	ADP	_	11 scale	case
8	so	so	ADV	_	9 small	advmod
9	small	small	ADJ	Degree=Pos	11 scale	amod
10	a	a	DET	Definite=Ind PronType=Art	11 scale	det
11	scale	scale	NOUN	Number=Sing	6 weak	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the effect			a small scale		far, weak property	tree rules

Option 4

The effect is reversed within enclosed buildings

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 effect	det
2	effect	effect	NOUN	Number=Sing	4 reversed	nsubj:pass
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 reversed	aux:pass
4	reversed	reverse	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	within	within	ADP	_	7 buildings	case
6	enclosed	enclose	VERB	Tense=Past VerbForm=Part Voice=Pass	7 buildings	amod
7	buildings	building	NOUN	Number=Plur	4 reversed	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	reverse	present · passive		the effect				within enclosed buildings	vn other_cos-45.4 «NP V NP.patient»: subject=Patient
2	enclose	participle							vn contiguous_location-47.8 «NP V NP»: agent=Theme

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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