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Test 4 · Forces — pushes, pulls, friction and magnets

You have a mixture of iron nails and sand. What is the easiest way to separate them?

Mova's choice: option 4 · The right answer: option 2 · wrong ✗ · Who acts: You, easiest way · What happens: have, be, separate · To what, where: mixture, nails

This is test 4 of lesson 51 «Forces — pushes, pulls, friction and magnets» 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: You have a mixture of iron nails and sand.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	You	you	PRON	Case=Nom Person=2 PronType=Prs	2 have	nsubj
2	have	have	VERB	Mood=Ind Number=Sing Person=2 Tense=Pres VerbForm=Fin	root	root
3	a	a	DET	Definite=Ind PronType=Art	4 mixture	det
4	mixture	mixture	NOUN	Number=Sing	2 have	obj
5	of	of	ADP	_	7 nails	case
6	iron	iron	NOUN	Number=Sing	7 nails	compound
7	nails	nail	NOUN	Number=Plur	4 mixture	nmod
8	and	and	CCONJ	_	9 sand	cc
9	sand	sand	NOUN	Number=Sing	7 nails	conj
10	.	.	PUNCT	_	2 have	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	have	present	You	a mixture of iron nails and sand					vn birth-28.2-1 «NP V NP»: agent=Agent mixture=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: What is the easiest way to separate them?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	root	root
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	1 What	cop
3	the	the	DET	Definite=Def PronType=Art	5 way	det
4	easiest	easy	ADJ	Degree=Sup	5 way	amod
5	way	way	NOUN	Number=Sing	1 What	nsubj
6	to	to	PART	_	7 separate	mark
7	separate	separate	VERB	VerbForm=Inf	5 way	acl
8	them	they	PRON	Case=Acc Number=Plur Person=3 PronType=Prs	7 separate	obj
9	?	?	PUNCT	_	1 What	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	the easiest way						tree rules
2	separate	to-infinitive	the easiest way not said here	nails = nail					vn separate-23.1-1-1 «NP V NP»: agent=Agent they=Patient

The options

Option 1

Blow on it with a fan

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Blow	blow	VERB	Mood=Imp VerbForm=Fin	root	root
2	on	on	ADP	_	3 it	case
3	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	1 Blow	obl
4	with	with	ADP	_	6 fan	case
5	a	a	DET	Definite=Ind PronType=Art	6 fan	det
6	fan	fan	NOUN	Number=Sing	1 Blow	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	blow	imperative	you not said here			it		with a fan	vn weather-57 «It V PP.theme»: with fan=Theme

Option 2 · ✓ the right answer

Pull the nails out with a magnet

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Pull	pull	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	3 nails	det
3	nails	nail	NOUN	Number=Plur	1 Pull	obj
4	out	out	ADV	_	1 Pull	advmod
5	with	with	ADP	_	7 magnet	case
6	a	a	DET	Definite=Ind PronType=Art	7 magnet	det
7	magnet	magnet	NOUN	Number=Sing	1 Pull	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pull out	imperative	you not said here	the nails				with a magnet; out property	tree rules

Option 3

Shake the mixture in a jar

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Shake	shake	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	3 mixture	det
3	mixture	mixture	NOUN	Number=Sing	1 Shake	obj
4	in	in	ADP	_	6 jar	case
5	a	a	DET	Definite=Ind PronType=Art	6 jar	det
6	jar	jar	NOUN	Number=Sing	1 Shake	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	shake	imperative	you not said here	the mixture		a jar			vn funnel-9.3-1-1 «NP V NP PP.trajectory»: agent=Agent mixture=Theme in jar=Trajectory

Option 4 · ← Mova's choice

Pour water over the mixture

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Pour	pour	VERB	Mood=Imp VerbForm=Fin	root	root
2	water	water	NOUN	Number=Sing	1 Pour	obj
3	over	over	ADP	_	5 mixture	case
4	the	the	DET	Definite=Def PronType=Art	5 mixture	det
5	mixture	mixture	NOUN	Number=Sing	1 Pour	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pour	imperative	you not said here	water		the mixture			vn preparing-26.3-2 «NP V NP»: agent=Agent water=Patient

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/51-forces/t4/