Exam question 1 · Gases all around: breath and balloons

Identify the substance whose presence in exhaled breath causes lime water to become milky.

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: you, substance · What happens: identify, exhale, cause, become · To what, where: lime water

This is exam question 1 of lesson 20 «Gases all around: breath and balloons» 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 substance	det
3	substance	substance	NOUN	Number=Sing	9 causes	nsubj
4	whose	whose	PRON	Poss=Yes PronType=Rel	5 presence	nmod:poss
5	presence	presence	NOUN	Number=Sing	9 causes	nsubj
6	in	in	ADP	_	8 breath	case
7	exhaled	exhale	VERB	Tense=Past VerbForm=Part Voice=Pass	8 breath	amod
8	breath	breath	NOUN	Number=Sing	5 presence	nmod
9	causes	cause	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	1 Identify	parataxis
10	lime	lime	NOUN	Number=Sing	11 water	compound
11	water	water	NOUN	Number=Sing	9 causes	obj
12	to	to	PART	_	13 become	mark
13	become	become	VERB	VerbForm=Inf	9 causes	advcl
14	milky	milky	ADJ	Degree=Pos	13 become	xcomp
15	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	other	roles by
1	identify	imperative	you not said here			vn empathize-88.2 «NP V»: agent=Experiencer
2	exhale	participle				vn exhale-40.1.3-1 «NP V»: agent=Agent
3	cause	present	the substance	lime water		vn engender-27.1-1 «NP V NP»: agent=Precondition water=Patient
4	become	to-infinitive	the substance not said here		milky property	vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient

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

Nitrogen

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nitrogen	Nitrogen	PROPN	Number=Sing	root	root

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

Option 2

Helium

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Helium	helium	NOUN	Number=Sing	root	root

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

Option 3 · ✓ the right answer

Carbon dioxide

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Carbon	carbon	NOUN	Number=Sing	2 dioxide	compound
2	dioxide	dioxide	NOUN	Number=Sing	root	root

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

Option 4

Oxygen

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Oxygen	oxygen	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/20-gases-all-around-breath-and-balloons/e1/