Test 6 · ★ · Mirrors, rainbows and the blue sky

Why do rain clouds look dark grey?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: rain clouds · What happens: look · To what, where: dark grey

This is test 6 · ★ of lesson 21 «Mirrors, rainbows and the blue sky» of the physics 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	5 look	advmod
2	do	do	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 look	aux
3	rain	rain	NOUN	Number=Sing	4 clouds	compound
4	clouds	cloud	NOUN	Number=Plur	5 look	nsubj
5	look	look	VERB	Mood=Ind Number=Sing Person=1 Tense=Pres VerbForm=Fin	root	root
6	dark	dark	ADJ	Degree=Pos	7 grey	amod
7	grey	grey	NOUN	Number=Sing	5 look	obj
8	?	?	PUNCT	_	5 look	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	look	present · do-support	rain clouds	dark grey					vn seem-109-1-1 «NP V NP»: agent=Theme grey=Attribute

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

They are full of black dust

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 full	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 full	cop
3	full	full	ADJ	Degree=Pos	root	root
4	of	of	ADP	_	6 dust	case
5	black	black	ADJ	Degree=Pos	6 dust	amod
6	dust	dust	NOUN	Number=Sing	3 full	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	They					of black dust; full property	tree rules

Option 2

They are colder than white clouds

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 colder	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 colder	cop
3	colder	cold	ADJ	Degree=Cmp	root	root
4	than	than	ADP	_	6 clouds	case
5	white	white	ADJ	Degree=Pos	6 clouds	amod
6	clouds	cloud	NOUN	Number=Plur	3 colder	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	They					than white clouds; cold property	tree rules

Option 3

They are reflecting the dark ground and the sea under them

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 reflecting	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 reflecting	aux
3	reflecting	reflect	VERB	Tense=Pres VerbForm=Part	root	root
4	the	the	DET	Definite=Def PronType=Art	6 ground	det
5	dark	dark	ADJ	Degree=Pos	6 ground	amod
6	ground	ground	NOUN	Number=Sing	3 reflecting	obj
7	and	and	CCONJ	_	9 sea	cc
8	the	the	DET	Definite=Def PronType=Art	9 sea	det
9	sea	sea	NOUN	Number=Sing	6 ground	conj
10	under	under	ADP	_	11 them	case
11	them	they	PRON	Case=Acc Number=Plur Person=3 PronType=Prs	3 reflecting	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	reflect	present · progressive	They	the dark ground and the sea				under ground	tree rules

Option 4 · ← Mova's choice · ✓ the right answer

They are so thick that hardly any light gets through

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	4 thick	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 thick	cop
3	so	so	ADV	_	4 thick	advmod
4	thick	thick	ADJ	Degree=Pos	root	root
5	that	that	SCONJ	_	9 gets	mark
6	hardly	hardly	ADV	_	7 any	advmod
7	any	any	DET	PronType=Ind	8 light	det
8	light	light	NOUN	Number=Sing	9 gets	nsubj
9	gets	get	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 thick	advcl
10	through	through	ADV	_	9 gets	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	They					thick property	tree rules
2	get through	present	any light					through property	vn cope-83-1-1 «NP V»: agent=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/physics/21-mirrors-rainbows-and-the-blue-sky/t6/