Test 1 · ★ · Compasses and the magnetic Earth

bro my compass is broken, it's pointing at my phone case magnet lol. is it?

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: compass · What happens: break, point, be · To what, where: bro, case magnet, compass

This is test 1 · ★ of lesson 30 «Compasses and the magnetic Earth» 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

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	bro	bro	NOUN	Number=Sing	5 broken	nsubj:pass
2	my	my	PRON	Case=Gen Number=Sing Person=1 Poss=Yes PronType=Prs	3 compass	nmod:poss
3	compass	compass	NOUN	Number=Sing	1 bro	conj
4	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 broken	aux:pass
5	broken	break	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
6	,	,	PUNCT	_	9 pointing	punct
7	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	9 pointing	nsubj
8	's	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	9 pointing	aux
9	pointing	point	VERB	Tense=Pres VerbForm=Part	5 broken	advcl
10	at	at	ADP	_	14 magnet	case
11	my	my	PRON	Case=Gen Number=Sing Person=1 Poss=Yes PronType=Prs	14 magnet	nmod:poss
12	phone	phone	NOUN	Number=Sing	13 case	compound
13	case	case	NOUN	Number=Sing	14 magnet	compound
14	magnet	magnet	NOUN	Number=Sing	9 pointing	obl
15	lol	lol	INTJ	_	9 pointing	discourse
16	.	.	PUNCT	_	5 broken	punct
17	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	18 it	cop
18	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	5 broken	obl
19	?	?	PUNCT	_	5 broken	punct

#	verb	tense, mood	who	what, whom	where	roles by
1	break	present · passive		bro and my compass		vn hurt-40.8.3-1-1 «NP V NP»: subject=Patient
2	point	present · progressive	compass		my case magnet	vn wink-40.3.1 «NP V»: agent=Agent
3	is a	present		compass		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.

The options

Option 1 · ← Mova's choice

Yes, it needs new batteries

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Yes	yes	INTJ	Polarity=Pos	4 needs	discourse
2	,	,	PUNCT	_	1 Yes	punct
3	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	4 needs	nsubj
4	needs	need	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	new	new	ADJ	Degree=Pos	6 batteries	amod
6	batteries	battery	NOUN	Number=Plur	4 needs	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	need	present	it	new batteries					vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot battery=Theme

Option 2

Yes, compasses can only break that way

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Yes	yes	INTJ	Polarity=Pos	6 break	discourse
2	,	,	PUNCT	_	1 Yes	punct
3	compasses	compass	NOUN	Number=Plur	6 break	nsubj
4	can	can	AUX	VerbForm=Fin	6 break	aux
5	only	only	ADV	_	6 break	advmod
6	break	break	VERB	VerbForm=Inf	root	root
7	that	that	DET	Number=Sing PronType=Dem	8 way	det
8	way	way	NOUN	Number=Sing	6 break	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	break	can	compasses	that way					vn hurt-40.8.3-1-1 «NP V NP»: agent=Experiencer way=Patient

Option 3

No, your phone case is actually north

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	No	no	INTJ	Polarity=Neg	7 actually	discourse
2	,	,	PUNCT	_	1 No	punct
3	your	your	PRON	Case=Gen Person=2 Poss=Yes PronType=Prs	5 case	nmod:poss
4	phone	phone	NOUN	Number=Sing	5 case	compound
5	case	case	NOUN	Number=Sing	7 actually	nsubj
6	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 actually	cop
7	actually	actually	ADV	_	root	root
8	north	north	ADV	_	7 actually	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	your phone case					actually, north property	tree rules

Option 4 · ✓ the right answer

Not broken, the close magnet just pulls harder than the Earth

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Not	not	PART	Polarity=Neg	2 broken	advmod
2	broken	break	VERB	Tense=Past VerbForm=Part Voice=Pass	8 pulls	advcl
3	,	,	PUNCT	_	8 pulls	punct
4	the	the	DET	Definite=Def PronType=Art	6 magnet	det
5	close	close	ADJ	Degree=Pos	6 magnet	amod
6	magnet	magnet	NOUN	Number=Sing	8 pulls	nsubj
7	just	just	ADV	_	8 pulls	advmod
8	pulls	pull	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
9	harder	hard	ADJ	Degree=Cmp	8 pulls	xcomp
10	than	than	ADP	_	12 Earth	case
11	the	the	DET	Definite=Def PronType=Art	12 Earth	det
12	Earth	Earth	PROPN	Number=Sing	9 harder	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	not break	participle	the close magnet not said here						vn hurt-40.8.3-1-1 «NP V»: agent=Patient
2	pull	present	the close magnet					hard property	vn slide-11.2 «NP V»: agent=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/physics/30-compasses-and-the-magnetic-earth/t1/