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Test 11 · Magnets: pulling and pushing without touching

Ella scatters iron filings round a magnet and they bunch up at the two ends. What does that tell her?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: Ella, filings, that · What happens: scatter, bunch up, tell · To what, where: iron filings, two ends, Ella · Speech: someone speaks here

This is test 11 of lesson 29 «Magnets: pulling and pushing without touching» of the physics 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: Ella scatters iron filings round a magnet and they bunch up at the two ends.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ella	Ella	PROPN	Number=Sing	2 scatters	nsubj
2	scatters	scatter	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	iron	iron	NOUN	Number=Sing	4 filings	compound
4	filings	filing	NOUN	Number=Plur	2 scatters	obj
5	round	round	ADP	_	7 magnet	case
6	a	a	DET	Definite=Ind PronType=Art	7 magnet	det
7	magnet	magnet	NOUN	Number=Sing	2 scatters	obl
8	and	and	CCONJ	_	10 bunch	cc
9	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	10 bunch	nsubj
10	bunch	bunch	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	2 scatters	conj
11	up	up	ADP	_	10 bunch	compound:prt
12	at	at	ADP	_	15 ends	case
13	the	the	DET	Definite=Def PronType=Art	15 ends	det
14	two	two	NUM	NumForm=Word NumType=Card	15 ends	nummod
15	ends	end	NOUN	Number=Plur	10 bunch	obl
16	.	.	PUNCT	_	2 scatters	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	scatter	present	Ella	iron filings				round a magnet	vn spray-9.7-1 «NP V NP.theme»: agent=Agent filing=Theme
2	bunch up	present	filings = filing				at the two ends		tree rules

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 does that tell her?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	4 tell	obj
2	does	do	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 tell	aux
3	that	that	PRON	Number=Sing PronType=Dem	4 tell	nsubj
4	tell	tell	VERB	VerbForm=Inf	root	root
5	her	she	PRON	Case=Acc Gender=Fem Number=Sing Person=3 PronType=Prs	4 tell	iobj
6	?	?	PUNCT	_	4 tell	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	tell speech: assert	present · do-support	that		Ella				vn transfer_mesg-37.1.1-1-1 «NP V NP-Dative NP»: agent=Agent she=Recipient what=Topic

The options

Option 1

The magnet is broken in the middle

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 magnet	det
2	magnet	magnet	NOUN	Number=Sing	4 broken	nsubj:pass
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 broken	aux:pass
4	broken	break	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	in	in	ADP	_	7 middle	case
6	the	the	DET	Definite=Def PronType=Art	7 middle	det
7	middle	middle	NOUN	Number=Sing	4 broken	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	break	present · passive		the magnet		the middle			vn hurt-40.8.3-1-1 «NP V NP»: subject=Patient

Option 2

The filings are scared of the middle

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 filings	det
2	filings	filing	NOUN	Number=Plur	4 scared	nsubj
3	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 scared	cop
4	scared	scared	ADJ	Degree=Pos	root	root
5	of	of	ADP	_	7 middle	case
6	the	the	DET	Definite=Def PronType=Art	7 middle	det
7	middle	middle	NOUN	Number=Sing	4 scared	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the filings					of the middle; scared property	tree rules

Option 3

The ends of the magnet are wet

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 ends	det
2	ends	end	NOUN	Number=Plur	7 wet	nsubj
3	of	of	ADP	_	5 magnet	case
4	the	the	DET	Definite=Def PronType=Art	5 magnet	det
5	magnet	magnet	NOUN	Number=Sing	2 ends	nmod
6	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	7 wet	cop
7	wet	wet	ADJ	Degree=Pos	root	root

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the ends of the magnet					wet property	tree rules

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

The pull is strongest at the poles

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 pull	det
2	pull	pull	NOUN	Number=Sing	4 strongest	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 strongest	cop
4	strongest	strong	ADJ	Degree=Sup	root	root
5	at	at	ADP	_	7 poles	case
6	the	the	DET	Definite=Def PronType=Art	7 poles	det
7	poles	pole	NOUN	Number=Plur	4 strongest	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the pull			the poles		strong 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/physics/29-magnets-pulling-and-pushing-without-touching/t11/