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Test 3 · ★ · Compasses and the magnetic Earth

In a cartoon, sailors use a compass made of a wooden stick. What's wrong?

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: sailors · What happens: use, make, be · To what, where: compass, cartoon

This is test 3 · ★ 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

Sentence 1: In a cartoon, sailors use a compass made of a wooden stick.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	In	in	ADP	_	3 cartoon	case
2	a	a	DET	Definite=Ind PronType=Art	3 cartoon	det
3	cartoon	cartoon	NOUN	Number=Sing	6 use	obl
4	,	,	PUNCT	_	3 cartoon	punct
5	sailors	sailor	NOUN	Number=Plur	6 use	nsubj
6	use	use	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
7	a	a	DET	Definite=Ind PronType=Art	8 compass	det
8	compass	compass	NOUN	Number=Sing	6 use	obj
9	made	make	VERB	Tense=Past VerbForm=Part Voice=Pass	8 compass	acl
10	of	of	ADP	_	13 stick	case
11	a	a	DET	Definite=Ind PronType=Art	13 stick	det
12	wooden	wooden	ADJ	Degree=Pos	13 stick	amod
13	stick	stick	NOUN	Number=Sing	9 made	obl
14	.	.	PUNCT	_	6 use	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	use	present	sailors	a compass		a cartoon			vn eat-39.1 «NP V NP»: agent=Agent compass=Patient
2	make	participle		a compass not said here				of a wooden stick	vn build-26.1-1 «NP.asset V NP»: agent=Asset

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's wrong?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	3 wrong	nsubj
2	's	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 wrong	cop
3	wrong	wrong	ADJ	Degree=Pos	root	root
4	?	?	PUNCT	_	3 wrong	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present						wrong property	tree rules

The options

Option 1 · ← Mova's choice

Wood is too heavy to float on water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Wood	wood	NOUN	Number=Sing	4 heavy	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 heavy	cop
3	too	too	ADV	_	4 heavy	advmod
4	heavy	heavy	ADJ	Degree=Pos	root	root
5	to	to	PART	_	6 float	mark
6	float	float	VERB	VerbForm=Inf	4 heavy	xcomp
7	on	on	ADP	_	8 water	case
8	water	water	NOUN	Number=Sing	6 float	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Wood					heavy property	tree rules
2	float	to-infinitive	Wood not said here			water			vn run-51.3.2-2 «NP V PP.location»: agent=Theme on water=Trajectory

Option 2

Nothing, any wooden stick will point north if it floats

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nothing	nothing	PRON	Number=Sing PronType=Neg	7 point	nsubj
2	,	,	PUNCT	_	1 Nothing	punct
3	any	any	DET	PronType=Ind	5 stick	det
4	wooden	wooden	ADJ	Degree=Pos	5 stick	amod
5	stick	stick	NOUN	Number=Sing	7 point	nsubj
6	will	will	AUX	VerbForm=Fin	7 point	aux
7	point	point	VERB	VerbForm=Inf	root	root
8	north	north	ADV	_	7 point	advmod
9	if	if	SCONJ	_	11 floats	mark
10	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	11 floats	nsubj
11	floats	float	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 point	advcl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	point	future	Nothing					north property	vn wink-40.3.1 «NP V»: agent=Agent
2	float a condition, not said to happen	present	stick						vn run-51.3.2-2 «NP V»: agent=Theme

Option 3

Sticks only point south

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Sticks	stick	NOUN	Number=Plur	3 point	nsubj
2	only	only	ADV	_	3 point	advmod
3	point	point	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	south	south	ADV	_	3 point	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	point	present	Sticks					south property	vn wink-40.3.1 «NP V»: agent=Agent

Option 4 · ✓ the right answer

The needle must be a magnet, and wood is not magnetic

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 needle	det
2	needle	needle	NOUN	Number=Sing	6 magnet	nsubj
3	must	must	AUX	VerbForm=Fin	6 magnet	aux
4	be	be	AUX	VerbForm=Inf	6 magnet	cop
5	a	a	DET	Definite=Ind PronType=Art	6 magnet	det
6	magnet	magnet	NOUN	Number=Sing	root	root
7	,	,	PUNCT	_	12 magnetic	punct
8	and	and	CCONJ	_	12 magnetic	cc
9	wood	wood	NOUN	Number=Sing	12 magnetic	nsubj
10	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	12 magnetic	cop
11	not	not	PART	Polarity=Neg	12 magnetic	advmod
12	magnetic	magnetic	ADJ	Degree=Pos	6 magnet	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	must	the needle	a magnet					tree rules
2	not is	present	wood					magnetic 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.

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