Exam question 1 · Mars

Identify the reason for which the surface of Mars presents a red appearance.

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: you, surface · What happens: identify, present · To what, where: reason, red appearance

This is exam question 1 of lesson 8 «Mars» 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	Identify	identify	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	3 reason	det
3	reason	reason	NOUN	Number=Sing	1 Identify	obj
4	for	for	ADP	_	5 which	case
5	which	which	PRON	PronType=Rel	10 presents	obl
6	the	the	DET	Definite=Def PronType=Art	7 surface	det
7	surface	surface	NOUN	Number=Sing	10 presents	nsubj
8	of	of	ADP	_	9 Mars	case
9	Mars	Mars	PROPN	Number=Sing	7 surface	nmod
10	presents	present	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 reason	acl
11	a	a	DET	Definite=Ind PronType=Art	13 appearance	det
12	red	red	ADJ	Degree=Pos	13 appearance	amod
13	appearance	appearance	NOUN	Number=Sing	10 presents	obj
14	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	identify	imperative	you not said here	the reason					vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent reason=Theme
2	present	present	the surface of Mars	a red appearance				for the reason	vn fulfilling-13.4.1 «NP V NP PP.recipient»: agent=Agent appearance=Theme for which=Recipient

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

The presence of red vegetation

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 presence	det
2	presence	presence	NOUN	Number=Sing	root	root
3	of	of	ADP	_	5 vegetation	case
4	red	red	ADJ	Degree=Pos	5 vegetation	amod
5	vegetation	vegetation	NOUN	Number=Sing	2 presence	nmod

The frames reader finds no event or fact in this sentence.

Option 2

The reflection of light from its moons

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 reflection	det
2	reflection	reflection	NOUN	Number=Sing	root	root
3	of	of	ADP	_	4 light	case
4	light	light	NOUN	Number=Sing	2 reflection	nmod
5	from	from	ADP	_	7 moons	case
6	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	7 moons	nmod:poss
7	moons	moon	NOUN	Number=Plur	2 reflection	nmod

The frames reader finds no event or fact in this sentence.

Option 3

The incandescence of its surface owing to intense heat

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 incandescence	det
2	incandescence	incandescence	NOUN	Number=Sing	root	root
3	of	of	ADP	_	5 surface	case
4	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	5 surface	nmod:poss
5	surface	surface	NOUN	Number=Sing	2 incandescence	nmod
6	owing	owe	VERB	VerbForm=Ger	2 incandescence	acl
7	to	to	ADP	_	9 heat	case
8	intense	intense	ADJ	Degree=Pos	9 heat	amod
9	heat	heat	NOUN	Number=Sing	6 owing	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	owe	gerund	the incandescence of incandescence's surface not said here					to intense heat goal	vn future_having-13.3 «NP V NP PP.goal»: agent=Agent to heat=Goal
2	incandesce			incandescence's surface					nom incandescence «phenomenon transitive»: of=patient

Option 4 · ✓ the right answer

The presence of iron oxide in its surface materials

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 presence	det
2	presence	presence	NOUN	Number=Sing	root	root
3	of	of	ADP	_	5 oxide	case
4	iron	iron	NOUN	Number=Sing	5 oxide	compound
5	oxide	oxide	NOUN	Number=Sing	2 presence	nmod
6	in	in	ADP	_	9 materials	case
7	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	9 materials	nmod:poss
8	surface	surface	NOUN	Number=Sing	9 materials	compound
9	materials	material	NOUN	Number=Plur	2 presence	nmod

The frames reader finds no event or fact in this sentence.

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/8-mars/e1/