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Exam question 4 · Separating mixtures

It is given that the steam from boiling salt water is condensed upon a cold surface. Ascertain the nature of the liquid obtained.

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: steam, you, liquid · What happens: give, boil, condense, ascertain, obtain · To what, where: It, salt water, steam, nature

This is exam question 4 of lesson 8 «Separating mixtures» 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

Sentence 1: It is given that the steam from boiling salt water is condensed upon a cold surface.

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 given	nsubj:pass
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 given	aux:pass
3	given	give	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	that	that	SCONJ	_	12 condensed	mark
5	the	the	DET	Definite=Def PronType=Art	6 steam	det
6	steam	steam	NOUN	Number=Sing	12 condensed	nsubj:pass
7	from	from	ADP	_	8 boiling	case
8	boiling	boil	VERB	VerbForm=Ger	6 steam	acl
9	salt	salt	NOUN	Number=Sing	10 water	compound
10	water	water	NOUN	Number=Sing	8 boiling	obj
11	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	12 condensed	aux:pass
12	condensed	condense	VERB	Tense=Past VerbForm=Part Voice=Pass	3 given	advcl
13	upon	upon	ADP	_	16 surface	case
14	a	a	DET	Definite=Ind PronType=Art	16 surface	det
15	cold	cold	ADJ	Degree=Pos	16 surface	amod
16	surface	surface	NOUN	Number=Sing	12 condensed	obl
17	.	.	PUNCT	_	3 given	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	give	present · passive		It					vn give-13.1-1 «NP V NP»: subject=Theme
2	boil	gerund	the steam not said here	salt water					vn cooking-45.3 «NP V NP.patient»: agent=Agent water=Patient
3	condense	present · passive		the steam				upon a cold surface	vn other_cos-45.4 «NP V NP.patient»: subject=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.

Sentence 2: Ascertain the nature of the liquid obtained.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ascertain	ascertain	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	3 nature	det
3	nature	nature	NOUN	Number=Sing	1 Ascertain	obj
4	of	of	SCONJ	_	7 obtained	mark
5	the	the	DET	Definite=Def PronType=Art	6 liquid	det
6	liquid	liquid	NOUN	Number=Sing	7 obtained	nsubj
7	obtained	obtain	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	3 nature	acl
8	.	.	PUNCT	_	1 Ascertain	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	ascertain	imperative	you not said here	the nature					vn discover-84 «NP V NP»: agent=Agent nature=Topic
2	obtain	past	the liquid	the nature not said here					vn obtain-13.5.2-1 «NP.asset V NP»: agent=Asset nature=Theme

The options

Option 1

Salt in a liquid, molten state

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Salt	salt	NOUN	Number=Sing	root	root
2	in	in	ADP	_	4 liquid	case
3	a	a	DET	Definite=Ind PronType=Art	4 liquid	det
4	liquid	liquid	NOUN	Number=Sing	1 Salt	nmod
5	,	,	PUNCT	_	7 state	punct
6	molten	molten	ADJ	Degree=Pos	7 state	amod
7	state	state	NOUN	Number=Sing	1 Salt	conj

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

Option 2

Water of greater salinity than the original

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Water	water	NOUN	Number=Sing	root	root
2	of	of	ADP	_	4 salinity	case
3	greater	great	ADJ	Degree=Cmp	4 salinity	amod
4	salinity	salinity	NOUN	Number=Sing	1 Water	nmod
5	than	than	ADP	_	7 original	case
6	the	the	DET	Definite=Def PronType=Art	7 original	det
7	original	original	ADJ	Degree=Pos	4 salinity	nmod

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

Option 3

A mixture identical to the original

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 mixture	det
2	mixture	mixture	NOUN	Number=Sing	3 identical	nsubj
3	identical	identical	ADJ	Degree=Pos	root	root
4	to	to	ADP	_	6 original	case
5	the	the	DET	Definite=Def PronType=Art	6 original	det
6	original	original	NOUN	Number=Sing	3 identical	obl

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

Option 4 · ← Mova's choice · ✓ the right answer

Pure water, devoid of salt

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Pure	pure	ADJ	Degree=Pos	2 water	amod
2	water	water	NOUN	Number=Sing	root	root
3	,	,	PUNCT	_	4 devoid	punct
4	devoid	devoid	ADJ	Degree=Pos	2 water	amod
5	of	of	ADP	_	6 salt	case
6	salt	salt	NOUN	Number=Sing	4 devoid	obl

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/8-separating-mixtures/e4/