Exam question 2 · The night sky in summer and autumn, and the southern sky

Which of the following statements most accurately characterises the visibility of the Plough and Polaris from Australia and New Zealand?

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

This is exam question 2 of lesson 21 «The night sky in summer and autumn, and the southern sky» of the space 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	Which	which	PRON	PronType=Rel	8 characterises	nsubj
2	of	of	ADP	_	5 statements	case
3	the	the	DET	Definite=Def PronType=Art	5 statements	det
4	following	follow	VERB	VerbForm=Ger	5 statements	amod
5	statements	statement	NOUN	Number=Plur	8 characterises	obl
6	most	most	ADV	Degree=Sup	7 accurately	advmod
7	accurately	accurately	ADV	_	8 characterises	advmod
8	characterises	characteris	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
9	the	the	DET	Definite=Def PronType=Art	10 visibility	det
10	visibility	visibility	NOUN	Number=Sing	8 characterises	obj
11	of	of	ADP	_	13 Plough	case
12	the	the	DET	Definite=Def PronType=Art	13 Plough	det
13	Plough	Plough	PROPN	Number=Sing	10 visibility	nmod
14	and	and	CCONJ	_	15 Polaris	cc
15	Polaris	Polaris	PROPN	Number=Sing	13 Plough	conj
16	from	from	ADP	_	17 Australia	case
17	Australia	Australia	PROPN	Number=Sing	15 Polaris	nmod
18	and	and	CCONJ	_	20 Zealand	cc
19	New	New	PROPN	Number=Sing	20 Zealand	flat
20	Zealand	Zealand	PROPN	Number=Sing	13 Plough	conj
21	?	?	PUNCT	_	8 characterises	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	follow	gerund							vn occur-48.3-1 «NP V»: agent=Theme
2	characteris	present		the visibility of the Plough and Polaris from Australia and New Zealand				of the following statements; accurately property	tree rules

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

They are visible only at midnight

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 visible	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 visible	cop
3	visible	visible	ADJ	Degree=Pos	root	root
4	only	only	ADV	_	6 midnight	advmod
5	at	at	ADP	_	6 midnight	case
6	midnight	midnight	NOUN	Number=Sing	3 visible	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	They				midnight	visible property	tree rules

Option 2

They are visible only in summer

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 visible	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 visible	cop
3	visible	visible	ADJ	Degree=Pos	root	root
4	only	only	ADV	_	6 summer	advmod
5	in	in	ADP	_	6 summer	case
6	summer	summer	NOUN	Number=Sing	3 visible	obl:unmarked

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	They				summer	visible property	tree rules

Option 3

They are visible throughout the year

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 visible	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 visible	cop
3	visible	visible	ADJ	Degree=Pos	root	root
4	throughout	throughout	ADP	_	6 year	case
5	the	the	DET	Definite=Def PronType=Art	6 year	det
6	year	year	NOUN	Number=Sing	3 visible	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	They				year	visible property	tree rules

Option 4 · ✓ the right answer

They are hidden from view

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 hidden	nsubj:pass
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 hidden	aux:pass
3	hidden	hide	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	from	from	ADP	_	5 view	case
5	view	view	NOUN	Number=Sing	3 hidden	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	hide	present · passive		They		view			vn concealment-16-1 «NP V NP PP.beneficiary»: subject=Patient from view=Beneficiary

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/space/21-the-night-sky-in-summer-and-autumn-and-the-southern-sky/e2/