Test 6 · ★★ · Riding a bike: why it stays up

Why do people wobble so much on a bike at walking speed?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · Who acts: people · What happens: wobble · To what, where: bike

This is test 6 · ★★ of lesson 9 «Riding a bike: why it stays up» 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	4 wobble	advmod
2	do	do	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 wobble	aux
3	people	people	NOUN	Number=Plur	4 wobble	nsubj
4	wobble	wobble	VERB	VerbForm=Inf	root	root
5	so	so	ADV	_	6 much	advmod
6	much	much	ADV	_	4 wobble	advmod
7	on	on	ADP	_	9 bike	case
8	a	a	DET	Definite=Ind PronType=Art	9 bike	det
9	bike	bike	NOUN	Number=Sing	4 wobble	obl
10	at	at	ADP	_	12 speed	case
11	walking	walking	NOUN	Number=Sing	12 speed	compound
12	speed	speed	NOUN	Number=Sing	4 wobble	obl
13	?	?	PUNCT	_	4 wobble	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	wobble	present · do-support	people			a bike		at walking speed	vn modes_of_being_with_motion-47.3 «NP V PP.location»: agent=Theme on bike=Location

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

The bike is heavier when slow

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 bike	det
2	bike	bike	NOUN	Number=Sing	4 heavier	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 heavier	cop
4	heavier	heavy	ADJ	Degree=Cmp	root	root
5	when	when	SCONJ	_	6 slow	mark
6	slow	slow	ADJ	Degree=Pos	4 heavier	advcl

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

Option 2 · ✓ the right answer

Slow riding needs bigger steering to stay up

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Slow	slow	ADJ	Degree=Pos	2 riding	amod
2	riding	riding	NOUN	Number=Sing	3 needs	nsubj
3	needs	need	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	bigger	big	ADJ	Degree=Cmp	5 steering	amod
5	steering	steering	NOUN	Number=Sing	3 needs	obj
6	to	to	PART	_	7 stay	mark
7	stay	stay	VERB	VerbForm=Inf	3 needs	xcomp
8	up	up	ADP	_	7 stay	compound:prt

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	need	present	Slow riding	bigger steering					tree rules
2	stay up not said to happen	to-infinitive	bigger steering not said here						vn exist-47.1 «NP V»: agent=Theme

Option 3

Slow wheels lose all their air

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Slow	slow	ADJ	Degree=Pos	2 wheels	amod
2	wheels	wheel	NOUN	Number=Plur	3 lose	nsubj
3	lose	lose	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	all	all	DET	PronType=Tot	6 air	det:predet
5	their	their	PRON	Case=Gen Number=Plur Person=3 Poss=Yes PronType=Prs	6 air	nmod:poss
6	air	air	NOUN	Number=Sing	3 lose	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	lose	present	Slow wheels	wheels's air					vn succeed-74-3-1 «NP V NP»: agent=Agent air=Eventuality

Option 4

The pedals pull you sideways

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 pedals	det
2	pedals	pedal	NOUN	Number=Plur	3 pull	nsubj
3	pull	pull	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	you	you	PRON	Case=Acc Person=2 PronType=Prs	3 pull	obj
5	sideways	sideways	ADV	_	3 pull	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pull	present	the pedals	you				sideways property	vn push-12-1 «NP V NP ADJP-Result»: agent=Agent you=Result

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/9-riding-a-bike/t6/