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Test 11 · Rust: iron's slow fire

A space game says Mars is red because it is covered in lava. What's the real reason?

Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: space game, Mars, real reason · What happens: say, be, cover · To what, where: game · Speech: someone speaks here

This is test 11 of lesson 13 «Rust: iron's slow fire» of the chemistry 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: A space game says Mars is red because it is covered in lava.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	3 game	det
2	space	space	NOUN	Number=Sing	3 game	compound
3	game	game	NOUN	Number=Sing	4 says	nsubj
4	says	say	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	Mars	Mars	PROPN	Number=Sing	7 red	nsubj
6	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 red	cop
7	red	red	ADJ	Degree=Pos	4 says	ccomp
8	because	because	SCONJ	_	11 covered	mark
9	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	11 covered	nsubj:pass
10	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	11 covered	aux:pass
11	covered	cover	VERB	Tense=Past VerbForm=Part Voice=Pass	7 red	advcl
12	in	in	ADP	_	13 lava	case
13	lava	lava	NOUN	Number=Sing	11 covered	obl
14	.	.	PUNCT	_	4 says	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	say speech: assert	present	a space game						vn say-37.7-1-1 «NP V that S»: agent=Agent
2	is	present	Mars					red property	tree rules
3	cover	present · passive		game				in lava	vn fill-9.8-1 «NP V NP PP.theme»: subject=Destination in lava=Theme

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.

Sentence 2: What's the real reason?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	root	root
2	's	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	1 What	cop
3	the	the	DET	Definite=Def PronType=Art	5 reason	det
4	real	real	ADJ	Degree=Pos	5 reason	amod
5	reason	reason	NOUN	Number=Sing	1 What	nsubj
6	?	?	PUNCT	_	1 What	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	the real reason						tree rules

The options

Option 1 · ← Mova's choice · ✓ the right answer

Its dust contains iron oxide, like rust

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	2 dust	nmod:poss
2	dust	dust	NOUN	Number=Sing	3 contains	nsubj
3	contains	contain	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	iron	iron	NOUN	Number=Sing	5 oxide	compound
5	oxide	oxide	NOUN	Number=Sing	3 contains	obj
6	,	,	PUNCT	_	8 rust	punct
7	like	like	ADP	_	8 rust	case
8	rust	rust	NOUN	Number=Sing	5 oxide	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	contain	present	Its dust	iron oxide and rust					vn comprise-107.2-2 «NP V NP»: agent=Pivot oxide=Theme

Option 2

It is covered in red sea water

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 covered	nsubj:pass
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 covered	aux:pass
3	covered	cover	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	in	in	ADP	_	7 water	case
5	red	red	ADJ	Degree=Pos	7 water	amod
6	sea	sea	NOUN	Number=Sing	7 water	compound
7	water	water	NOUN	Number=Sing	3 covered	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	cover	present · passive		It				in red sea water	vn fill-9.8-1 «NP V NP PP.theme»: subject=Destination in water=Theme

Option 3

It has red trees and plants

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 has	nsubj
2	has	have	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	red	red	ADJ	Degree=Pos	4 trees	amod
4	trees	tree	NOUN	Number=Plur	2 has	obj
5	and	and	CCONJ	_	6 plants	cc
6	plants	plant	NOUN	Number=Plur	4 trees	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	have	present	It	red trees and plants					vn birth-28.2-1 «NP V NP»: agent=Agent tree=Patient

Option 4

It is glowing red-hot all the time

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 glowing	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 glowing	aux
3	glowing	glow	VERB	Tense=Pres VerbForm=Part	root	root
4	red	red	ADJ	Degree=Pos	6 hot	amod
5	-	-	PUNCT	_	4 red	punct
6	hot	hot	ADJ	Degree=Pos	3 glowing	xcomp
7	all	all	DET	PronType=Tot	9 time	det:predet
8	the	the	DET	Definite=Def PronType=Art	9 time	det
9	time	time	NOUN	Number=Sing	3 glowing	obl:unmarked

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	glow	present · progressive	It				time	hot property	vn light_emission-43.1 «NP V»: 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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/13-rust-irons-slow-fire/t11/