Test 9 · ★★★ · How stars die

Why could people in Britain not see the 1987 supernova with their own eyes?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · Who acts: people · What happens: not see · To what, where: 1987 supernova

This is test 9 · ★★★ of lesson 19 «How stars die» of the space 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

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Why	why	ADV	PronType=Int	7 see	advmod
2	could	could	AUX	VerbForm=Fin	7 see	aux
3	people	people	NOUN	Number=Plur	7 see	nsubj
4	in	in	ADP	_	5 Britain	case
5	Britain	Britain	PROPN	Number=Sing	3 people	nmod
6	not	not	PART	Polarity=Neg	7 see	advmod
7	see	see	VERB	VerbForm=Inf	root	root
8	the	the	DET	Definite=Def PronType=Art	10 supernova	det
9	1987	1987	NUM	NumForm=Digit NumType=Card	10 supernova	nummod
10	supernova	supernova	NOUN	Number=Sing	7 see	obj
11	with	with	ADP	_	14 eyes	case
12	their	their	PRON	Case=Gen Number=Plur Person=3 Poss=Yes PronType=Prs	14 eyes	nmod:poss
13	own	own	ADJ	Degree=Pos	14 eyes	amod
14	eyes	eye	NOUN	Number=Plur	7 see	obl
15	?	?	PUNCT	_	7 see	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	not see	could	people in Britain	the 1987 supernova				with people's own eyes	vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer supernova=Stimulus

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

It happened only in the daytime

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	2 happened	nsubj
2	happened	happen	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	root	root
3	only	only	ADV	_	6 daytime	advmod
4	in	in	ADP	_	6 daytime	case
5	the	the	DET	Definite=Def PronType=Art	6 daytime	det
6	daytime	daytime	NOUN	Number=Sing	2 happened	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	happen	past	It			the daytime			vn occur-48.3-1 «NP V PP»: agent=Theme in daytime=Location

Option 2 · ✓ the right answer

It was in the Large Magellanic Cloud, seen from the southern hemisphere

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	7 Cloud	nsubj
2	was	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	7 Cloud	cop
3	in	in	ADP	_	7 Cloud	case
4	the	the	DET	Definite=Def PronType=Art	7 Cloud	det
5	Large	large	ADJ	Degree=Pos	7 Cloud	amod
6	Magellanic	Magellanic	PROPN	Number=Sing	7 Cloud	compound
7	Cloud	Cloud	PROPN	Number=Sing	root	root
8	,	,	PUNCT	_	9 seen	punct
9	seen	see	VERB	Tense=Past VerbForm=Part Voice=Pass	7 Cloud	acl
10	from	from	ADP	_	13 hemisphere	case
11	the	the	DET	Definite=Def PronType=Art	13 hemisphere	det
12	southern	southern	ADJ	Degree=Pos	13 hemisphere	amod
13	hemisphere	hemisphere	NOUN	Number=Sing	9 seen	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	past	It			the Large Magellanic Cloud			tree rules
2	see	participle		the Large Magellanic Cloud not said here		the southern hemisphere			vn comprehend-87.2-1-1 «NP V»: agent=Experiencer

Option 3

It was hidden behind Jupiter

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 hidden	nsubj:pass
2	was	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	3 hidden	aux:pass
3	hidden	hide	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	behind	behind	ADP	_	5 Jupiter	case
5	Jupiter	Jupiter	PROPN	Number=Sing	3 hidden	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	hide	past · passive		It		Jupiter			vn concealment-16-1 «NP V NP PP.location»: subject=Patient behind jupiter=Location

Option 4

It was too faint for anyone's eyes

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	4 faint	nsubj
2	was	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	4 faint	cop
3	too	too	ADV	_	4 faint	advmod
4	faint	faint	ADJ	Degree=Pos	root	root
5	for	for	ADP	_	8 eyes	case
6	anyone	anyone	PRON	Number=Sing PronType=Ind	8 eyes	nmod:poss
7	's	's	PART	_	6 anyone	case
8	eyes	eye	NOUN	Number=Plur	4 faint	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	past	It					for anyone's eyes; faint property	tree rules

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/19-how-stars-die/t9/