Exam question 2 · Mirrors, shadows and colours

Identify the instrument which employs two mirrors to permit vision over obstacles.

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: you, instrument · What happens: identify, employ, permit · To what, where: instrument, two mirrors, vision, obstacles

This is exam question 2 of lesson 84 «Mirrors, shadows and colours» of the world 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 instrument	det
3	instrument	instrument	NOUN	Number=Sing	1 Identify	obj
4	which	which	PRON	PronType=Rel	5 employs	nsubj
5	employs	employ	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 instrument	acl:relcl
6	two	two	NUM	NumForm=Word NumType=Card	7 mirrors	nummod
7	mirrors	mirror	NOUN	Number=Plur	5 employs	obj
8	to	to	PART	_	9 permit	mark
9	permit	permit	VERB	VerbForm=Inf	5 employs	advcl
10	vision	vision	NOUN	Number=Sing	9 permit	obj
11	over	over	ADP	_	12 obstacles	case
12	obstacles	obstacle	NOUN	Number=Plur	9 permit	obl
13	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	where	roles by
1	identify	imperative	you not said here	the instrument		vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent instrument=Theme
2	employ	present	the instrument	two mirrors		vn hire-13.5.3 «NP V NP»: agent=Agent mirror=Theme
3	permit	to-infinitive	the instrument not said here	vision	obstacles	vn admit-64.3-1 «NP V NP PP.location»: agent=Agent vision=Theme over obstacle=Location

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

A filter

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 filter	det
2	filter	filter	NOUN	Number=Sing	root	root

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

Option 2

A prism

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 prism	det
2	prism	prism	NOUN	Number=Sing	root	root

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

Option 3

A sundial

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 sundial	det
2	sundial	sundial	NOUN	Number=Sing	root	root

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

Option 4 · ✓ the right answer

A periscope

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 periscope	det
2	periscope	periscope	NOUN	Number=Sing	root	root

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/world/84-mirrors-shadows-colours/e2/