Test 9 · Magnets: pulling and pushing without touching

Why does a maglev train hardly lose any speed to friction?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · What happens: do, lose · To what, where: maglev train, speed

This is test 9 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

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Why	why	ADV	PronType=Int	7 lose	advmod
2	does	do	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 lose	advcl
3	a	a	DET	Definite=Ind PronType=Art	5 train	det
4	maglev	maglev	NOUN	Number=Sing	5 train	compound
5	train	train	NOUN	Number=Sing	2 does	obj
6	hardly	hardly	ADV	_	7 lose	advmod
7	lose	lose	VERB	Mood=Ind Number=Sing Person=1 Tense=Pres VerbForm=Fin	root	root
8	any	any	DET	PronType=Ind	9 speed	det
9	speed	speed	NOUN	Number=Sing	7 lose	obj
10	to	to	ADP	_	11 friction	case
11	friction	friction	NOUN	Number=Sing	7 lose	obl
12	?	?	PUNCT	_	7 lose	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	do	present		a maglev train					vn act-114-1 «NP V NP»: agent=Agent train=Eventuality
2	lose	present		any speed				to friction; hardly property	vn succeed-74-3-1 «NP V NP»: agent=Agent speed=Eventuality

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

It travels only downhill

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 travels	nsubj
2	travels	travel	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	only	only	ADV	_	4 downhill	advmod
4	downhill	downhill	ADV	_	2 travels	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	travel	present	It					downhill property	vn run-51.3.2-1 «NP V»: agent=Theme

Option 2 · ✓ the right answer

No wheels touch the track

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	No	no	DET	PronType=Neg	2 wheels	det
2	wheels	wheel	NOUN	Number=Plur	3 touch	nsubj
3	touch	touch	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	the	the	DET	Definite=Def PronType=Art	5 track	det
5	track	track	NOUN	Number=Sing	3 touch	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	touch	present	no wheels	the track					vn contiguous_location-47.8-1 «NP V NP»: agent=Theme track=Co-Theme

Option 3

The track is greased with oil

The words, one row each (CoNLL-U)

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

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	grease	present · passive		the track				with oil	vn butter-9.9 «NP V NP PP.theme»: subject=Destination with oil=Theme

Option 4

The train is made of feathers

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 train	det
2	train	train	NOUN	Number=Sing	4 made	nsubj:pass
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 made	aux:pass
4	made	make	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	of	of	ADP	_	6 feathers	case
6	feathers	feather	NOUN	Number=Plur	4 made	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	make	present · passive		the train				of feathers	vn build-26.1-1 «NP.asset V NP»: subject=Product

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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