Test 9 · ★ · Balance: the centre of gravity

Why is balancing a pencil on your finger almost impossible?

Mova's choice: option 1 · The right answer: option 1 · right ✓ · What happens: balance · To what, where: pencil, finger

This is test 9 · ★ of lesson 8 «Balance: the centre of gravity» 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	3 balancing	advmod
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 balancing	aux
3	balancing	balance	VERB	Tense=Pres VerbForm=Part	root	root
4	a	a	DET	Definite=Ind PronType=Art	5 pencil	det
5	pencil	pencil	NOUN	Number=Sing	3 balancing	obj
6	on	on	ADP	_	8 finger	case
7	your	your	PRON	Case=Gen Person=2 Poss=Yes PronType=Prs	8 finger	nmod:poss
8	finger	finger	NOUN	Number=Sing	3 balancing	obl
9	almost	almost	ADV	_	10 impossible	advmod
10	impossible	impossible	ADJ	Degree=Pos	8 finger	amod
11	?	?	PUNCT	_	3 balancing	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	balance	present · progressive		a pencil		your finger			vn spatial_configuration-47.6-1 «NP V NP.theme PP»: agent=Agent pencil=Theme on finger=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 right answer

It tips over too fast to correct

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 tips	nsubj
2	tips	tip	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	over	over	ADP	_	2 tips	compound:prt
4	too	too	ADV	_	5 fast	advmod
5	fast	fast	ADV	Degree=Pos	2 tips	advmod
6	to	to	PART	_	7 correct	mark
7	correct	correct	VERB	VerbForm=Inf	5 fast	advcl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	tip over	present	It					fast property	vn throw-17.1-1-1 «NP V NP»: agent=Agent
2	correct speech: disagree	to-infinitive							vn remedy-45.7 «NP V NP.patient»: agent=Agent

Option 2

It is too long and thin to see

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	4 long	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 long	cop
3	too	too	ADV	_	4 long	advmod
4	long	long	ADJ	Degree=Pos	root	root
5	and	and	CCONJ	_	6 thin	cc
6	thin	thin	ADJ	Degree=Pos	4 long	conj
7	to	to	PART	_	8 see	mark
8	see	see	VERB	VerbForm=Inf	6 thin	advcl

#	verb	tense, mood	who	other	roles by
1	is	present	It	long property	tree rules
2	be				tree rules
3	see	to-infinitive			vn comprehend-87.2-1-1 «NP V»: agent=Experiencer

Option 3

It is far too heavy

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	5 heavy	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 heavy	cop
3	far	far	ADV	Degree=Pos	5 heavy	advmod
4	too	too	ADV	_	5 heavy	advmod
5	heavy	heavy	ADJ	Degree=Pos	root	root

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

Option 4

Pencils have no centre of gravity

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Pencils	pencil	NOUN	Number=Plur	2 have	nsubj
2	have	have	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	no	no	DET	PronType=Neg	4 centre	det
4	centre	centre	NOUN	Number=Sing	2 have	obj
5	of	of	ADP	_	6 gravity	case
6	gravity	gravity	NOUN	Number=Sing	4 centre	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	have	present	Pencils	no centre of gravity					vn birth-28.2-1 «NP V NP»: agent=Agent centre=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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/physics/8-balance-the-centre-of-gravity/t9/