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Test 1 · ★★ · Mixtures and how to separate them

Gold-seekers swirl river gravel in a pan of water. The heavy gold stays in the pan and the lighter sand washes out. Which property is used?

Mova's choice: option 3 · The right answer: option 4 · wrong ✗ · Who acts: Gold seekers, heavy gold, lighter sand · What happens: swirl, stay, wash out, use · To what, where: river gravel, pan, property

This is test 1 · ★★ of lesson 19 «Mixtures and how to separate them» of the world 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

Sentence 1: Gold-seekers swirl river gravel in a pan of water.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Gold	gold	NOUN	Number=Sing	3 seekers	compound
2	-	-	PUNCT	_	1 Gold	punct
3	seekers	seeker	NOUN	Number=Plur	4 swirl	nsubj
4	swirl	swirl	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
5	river	river	NOUN	Number=Sing	6 gravel	compound
6	gravel	gravel	NOUN	Number=Sing	4 swirl	obj
7	in	in	ADP	_	9 pan	case
8	a	a	DET	Definite=Ind PronType=Art	9 pan	det
9	pan	pan	NOUN	Number=Sing	4 swirl	obl
10	of	of	ADP	_	11 water	case
11	water	water	NOUN	Number=Sing	9 pan	nmod
12	.	.	PUNCT	_	4 swirl	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	swirl	present	Gold seekers	river gravel		a pan of water			vn modes_of_being_with_motion-47.3 «PP.location V NP»: agent=Location gravel=Theme

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: The heavy gold stays in the pan and the lighter sand washes out.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 gold	det
2	heavy	heavy	ADJ	Degree=Pos	3 gold	amod
3	gold	gold	NOUN	Number=Sing	4 stays	nsubj
4	stays	stay	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	in	in	ADP	_	7 pan	case
6	the	the	DET	Definite=Def PronType=Art	7 pan	det
7	pan	pan	NOUN	Number=Sing	4 stays	obl
8	and	and	CCONJ	_	12 washes	cc
9	the	the	DET	Definite=Def PronType=Art	11 sand	det
10	lighter	light	ADJ	Degree=Cmp	11 sand	amod
11	sand	sand	NOUN	Number=Sing	12 washes	nsubj
12	washes	wash	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 stays	conj
13	out	out	ADP	_	12 washes	compound:prt
14	.	.	PUNCT	_	4 stays	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	stay	present	the heavy gold			the pan			vn exist-47.1 «NP V PP.location»: agent=Theme in pan=Location
2	wash out	present	the lighter sand						vn floss-41.2.1 «NP V»: agent=Agent

Sentence 3: Which property is used?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Which	which	DET	PronType=Int	2 property	det
2	property	property	NOUN	Number=Sing	4 used	nsubj:pass
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 used	aux:pass
4	used	use	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	?	?	PUNCT	_	4 used	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	use	present · passive		which property					vn eat-39.1 «NP V NP»: subject=Patient

The options

Option 1

Gold dissolves in water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Gold	gold	NOUN	Number=Sing	2 dissolves	nsubj
2	dissolves	dissolve	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	in	in	ADP	_	4 water	case
4	water	water	NOUN	Number=Sing	2 dissolves	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	dissolve	present	Gold			water			vn break-45.1 «NP.patient V»: agent=Patient

Option 2

Gold floats on water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Gold	gold	NOUN	Number=Sing	2 floats	nsubj
2	floats	float	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	on	on	ADP	_	4 water	case
4	water	water	NOUN	Number=Sing	2 floats	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	float	present	Gold			water			vn run-51.3.2-2 «NP V PP.location»: agent=Theme on water=Trajectory

Option 3 · ← Mova's choice

Gold is pulled by magnets

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Gold	gold	NOUN	Number=Sing	3 pulled	nsubj:pass
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 pulled	aux:pass
3	pulled	pull	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	by	by	ADP	_	5 magnets	case
5	magnets	magnet	NOUN	Number=Plur	3 pulled	obl:agent

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pull	present · passive	magnets	Gold					vn push-12-1 «NP V NP»: agent=Agent subject=Theme

Option 4 · ✓ the right answer

Gold is much denser than sand

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Gold	gold	NOUN	Number=Sing	4 denser	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 denser	cop
3	much	much	ADV	_	4 denser	advmod
4	denser	dense	ADJ	Degree=Cmp	root	root
5	than	than	ADP	_	6 sand	case
6	sand	sand	NOUN	Number=Sing	4 denser	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Gold					than sand; dense property	tree rules

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/19-mixtures-and-separating/t1/