Exam question 1 · Indicators: the red-cabbage rainbow

Identify the term designating a substance whose colour reveals whether a solution is acidic or alkaline.

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: you, term, colour, solution · What happens: identify, designate, reveal, be · To what, where: term, substance

This is exam question 1 of lesson 17 «Indicators: the red-cabbage rainbow» of the chemistry 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 term	det
3	term	term	NOUN	Number=Sing	1 Identify	obj
4	designating	designate	VERB	VerbForm=Ger	3 term	acl
5	a	a	DET	Definite=Ind PronType=Art	6 substance	det
6	substance	substance	NOUN	Number=Sing	4 designating	obj
7	whose	whose	PRON	Poss=Yes PronType=Rel	8 colour	nmod:poss
8	colour	colour	NOUN	Number=Sing	9 reveals	nsubj
9	reveals	reveal	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 substance	acl:relcl
10	whether	whether	SCONJ	_	14 acidic	mark
11	a	a	DET	Definite=Ind PronType=Art	12 solution	det
12	solution	solution	NOUN	Number=Sing	14 acidic	nsubj
13	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	14 acidic	cop
14	acidic	acidic	ADJ	Degree=Pos	9 reveals	ccomp
15	or	or	CCONJ	_	16 alkaline	cc
16	alkaline	alkaline	ADJ	Degree=Pos	14 acidic	conj
17	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	other	roles by
1	identify	imperative	you not said here	the term		vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent term=Theme
2	designate	gerund	the term not said here	a substance		vn appoint-29.1 «NP V NP»: agent=Agent substance=Theme
3	reveal	present	colour			vn characterize-29.2-1-2 «NP V NP»: agent=Agent
4	is	present	a solution		acidic property	tree rules
5	be		a solution not said here			tree rules

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 catalyst

The words, one row each (CoNLL-U)

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

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

Option 2

A solvent

The words, one row each (CoNLL-U)

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

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

Option 3 · ✓ the right answer

An indicator

The words, one row each (CoNLL-U)

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

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

Option 4

A neutraliser

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 neutraliser	det
2	neutraliser	neutraliser	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/chemistry/17-indicators-the-red-cabbage-rainbow/e1/