Test 6 · ★ · Compasses and the magnetic Earth

If the Earth had no magnetic field, what might happen over a very long time?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: Earth, magnetic field · What happens: have, happen · To what, where: magnetic field

This is test 6 · ★ 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	If	if	SCONJ	_	4 had	mark
2	the	the	DET	Definite=Def PronType=Art	3 Earth	det
3	Earth	Earth	PROPN	Number=Sing	4 had	nsubj
4	had	have	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	root	root
5	no	no	DET	PronType=Neg	7 field	det
6	magnetic	magnetic	ADJ	Degree=Pos	7 field	amod
7	field	field	NOUN	Number=Sing	4 had	obj
8	,	,	PUNCT	_	11 happen	punct
9	what	what	PRON	PronType=Int	11 happen	nsubj
10	might	might	AUX	VerbForm=Fin	11 happen	aux
11	happen	happen	VERB	VerbForm=Inf	7 field	acl:relcl
12	over	over	ADP	_	16 time	case
13	a	a	DET	Definite=Ind PronType=Art	16 time	det
14	very	very	ADV	_	15 long	advmod
15	long	long	ADJ	Degree=Pos	16 time	amod
16	time	time	NOUN	Number=Sing	11 happen	obl
17	?	?	PUNCT	_	4 had	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	have	past	the Earth	no magnetic field					vn birth-28.2-1 «NP V NP»: agent=Agent field=Patient
2	happen	might	no magnetic field				time		vn occur-48.3-1 «NP V»: agent=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.

The options

Option 1

Compasses would point south instead

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Compasses	compass	NOUN	Number=Plur	3 point	nsubj
2	would	would	AUX	VerbForm=Fin	3 point	aux
3	point	point	VERB	VerbForm=Inf	root	root
4	south	south	ADV	_	3 point	advmod
5	instead	instead	ADV	_	3 point	advmod

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

Option 2

Rain would fall upwards

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Rain	rain	NOUN	Number=Sing	3 fall	nsubj
2	would	would	AUX	VerbForm=Fin	3 fall	aux
3	fall	fall	VERB	VerbForm=Inf	root	root
4	upwards	upwards	ADV	_	3 fall	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	fall	would	Rain					upwards property	vn occur-48.3 «NP V»: agent=Theme

Option 3

The Earth would stop going round the Sun and drift off into space

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 Earth	det
2	Earth	Earth	PROPN	Number=Sing	4 stop	nsubj
3	would	would	AUX	VerbForm=Fin	4 stop	aux
4	stop	stop	VERB	VerbForm=Inf	root	root
5	going	go	VERB	VerbForm=Ger	4 stop	xcomp
6	round	round	ADP	_	8 Sun	case
7	the	the	DET	Definite=Def PronType=Art	8 Sun	det
8	Sun	Sun	PROPN	Number=Sing	5 going	obl
9	and	and	CCONJ	_	10 drift	cc
10	drift	drift	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 stop	conj
11	off	off	ADP	_	10 drift	compound:prt
12	into	into	ADP	_	13 space	case
13	space	space	NOUN	Number=Sing	10 drift	obl

#	verb	tense, mood	who	where	roles by
1	stop	would	the Earth		vn stop-55.4-1-1 «NP V S_ING»: agent=Affector clause=Eventuality
2	go	gerund	the Earth not said here	the Sun	vn escape-51.1-1 «NP V PP.initial_location»: agent=Theme round sun=Initial_Location
3	drift off	present	the Earth not said here	space	vn change_bodily_state-40.8.4 «NP V»: agent=Experiencer

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

The Sun's charged bits would strip away some of our air

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 Sun	det
2	Sun	Sun	PROPN	Number=Sing	5 bits	nmod:poss
3	's	's	PART	_	2 Sun	case
4	charged	charge	VERB	Tense=Past VerbForm=Part Voice=Pass	5 bits	amod
5	bits	bit	NOUN	Number=Plur	7 strip	nsubj
6	would	would	AUX	VerbForm=Fin	7 strip	aux
7	strip	strip	VERB	VerbForm=Inf	root	root
8	away	away	ADV	_	7 strip	compound:prt
9	some	some	DET	PronType=Ind	7 strip	obj
10	of	of	ADP	_	12 air	case
11	our	our	PRON	Case=Gen Number=Plur Person=1 Poss=Yes PronType=Prs	12 air	nmod:poss
12	air	air	NOUN	Number=Sing	9 some	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	charge	participle							vn run-51.3.2 «NP V»: agent=Theme
2	strip away	would	the Sun's charged bits	some					vn dress-41.1.1-1-1 «NP V NP»: agent=Agent some=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.

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