Test 8 · ★★ · Mixing and dissolving

Why do sugar crystals sometimes appear at the bottom of an old jar of syrup?

Mova's choice: option 4 · The right answer: option 3 · wrong ✗ · Who acts: sugar crystals · What happens: appear · To what, where: bottom

This is test 8 · ★★ of lesson 6 «Mixing and dissolving» of the chemistry course of Mova's primary school. 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	Why	why	ADV	PronType=Int	6 appear	advmod
2	do	do	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	6 appear	aux
3	sugar	sugar	NOUN	Number=Sing	4 crystals	compound
4	crystals	crystal	NOUN	Number=Plur	6 appear	nsubj
5	sometimes	sometimes	ADV	PronType=Ind	6 appear	advmod
6	appear	appear	VERB	Mood=Ind Number=Sing Person=1 Tense=Pres VerbForm=Fin	root	root
7	at	at	ADP	_	9 bottom	case
8	the	the	DET	Definite=Def PronType=Art	9 bottom	det
9	bottom	bottom	NOUN	Number=Sing	6 appear	obl
10	of	of	ADP	_	13 jar	case
11	an	a	DET	Definite=Ind PronType=Art	13 jar	det
12	old	old	ADJ	Degree=Pos	13 jar	amod
13	jar	jar	NOUN	Number=Sing	9 bottom	nmod
14	of	of	ADP	_	15 syrup	case
15	syrup	syrup	NOUN	Number=Sing	13 jar	nmod
16	?	?	PUNCT	_	6 appear	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	appear	present · do-support	sugar crystals			the bottom of a old jar of syrup		sometimes property	vn appear-48.1.1 «NP V PP.location»: agent=Theme at bottom=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

Ants carry them in at night

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ants	ant	NOUN	Number=Plur	2 carry	nsubj
2	carry	carry	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	them	they	PRON	Case=Acc Number=Plur Person=3 PronType=Prs	2 carry	obj
4	in	in	ADP	_	2 carry	compound:prt
5	at	at	ADP	_	6 night	case
6	night	night	NOUN	Number=Sing	2 carry	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	carry in	present	Ants	them = they			night		vn carry-11.4 «NP V NP»: agent=Agent they=Theme

Option 2

Syrup slowly turns into salt over time

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Syrup	syrup	NOUN	Number=Sing	3 turns	nsubj
2	slowly	slowly	ADV	_	3 turns	advmod
3	turns	turn	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	into	into	ADP	_	5 salt	case
5	salt	salt	NOUN	Number=Sing	3 turns	obl
6	over	over	ADP	_	7 time	case
7	time	time	NOUN	Number=Sing	3 turns	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	turn	present	Syrup			salt	time	slowly property	vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme into salt=Trajectory

Option 3 · ✓ the right answer

It holds more sugar than it can keep dissolved as it cools

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	2 holds	nsubj
2	holds	hold	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	more	more	ADJ	Degree=Cmp	4 sugar	amod
4	sugar	sugar	NOUN	Number=Sing	2 holds	obj
5	than	than	SCONJ	_	8 keep	mark
6	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	8 keep	nsubj
7	can	can	AUX	VerbForm=Fin	8 keep	aux
8	keep	keep	VERB	VerbForm=Inf	2 holds	advcl
9	dissolved	dissolve	VERB	Tense=Past VerbForm=Part Voice=Pass	8 keep	xcomp
10	as	as	SCONJ	_	12 cools	mark
11	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	12 cools	nsubj
12	cools	cool	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	9 dissolved	advcl

#	verb	tense, mood	who	what, whom	roles by
1	hold	present	It	more sugar	vn keep-15.2 «NP V NP»: agent=Agent sugar=Theme
2	keep	can	sugar		tree rules
3	dissolve	participle	sugar not said here		vn break-45.1 «NP.patient V»: agent=Patient
4	cool	present	sugar		vn other_cos-45.4 «NP.patient V»: agent=Patient

Option 4 · ← Mova's choice

The glass grows crystals

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 glass	det
2	glass	glass	NOUN	Number=Sing	3 grows	nsubj
3	grows	grow	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	crystals	crystal	NOUN	Number=Plur	3 grows	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	grow	present	the glass	crystals					vn appear-48.1.1 «PP.location V NP»: agent=Location crystal=Theme

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/6-mixing-and-dissolving/t8/