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Test 9 · ★ · Gravity

Two balls of the same size, one of steel and one of rubber, are dropped from a low wall. What happens?

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · What happens: drop, happen · To what, where: Two balls, low wall

This is test 9 · ★ of lesson 6 «Gravity» of the world 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: Two balls of the same size, one of steel and one of rubber, are dropped from a low wall.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Two	two	NUM	NumForm=Word NumType=Card	2 balls	nummod
2	balls	ball	NOUN	Number=Plur	17 dropped	nsubj
3	of	of	ADP	_	6 size	case
4	the	the	DET	Definite=Def PronType=Art	6 size	det
5	same	same	ADJ	Degree=Pos	6 size	amod
6	size	size	NOUN	Number=Sing	2 balls	nmod
7	,	,	PUNCT	_	8 one	punct
8	one	one	NUM	NumForm=Word NumType=Card	6 size	appos
9	of	of	ADP	_	10 steel	case
10	steel	steel	NOUN	Number=Sing	8 one	nmod
11	and	and	CCONJ	_	12 one	cc
12	one	one	NUM	NumForm=Word NumType=Card	8 one	conj
13	of	of	ADP	_	14 rubber	case
14	rubber	rubber	NOUN	Number=Sing	12 one	nmod
15	,	,	PUNCT	_	2 balls	punct
16	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	17 dropped	aux:pass
17	dropped	drop	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
18	from	from	ADP	_	21 wall	case
19	a	a	DET	Definite=Ind PronType=Art	21 wall	det
20	low	low	ADJ	Degree=Pos	21 wall	amod
21	wall	wall	NOUN	Number=Sing	17 dropped	obl
22	.	.	PUNCT	_	17 dropped	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	drop	present · passive		Two balls of the same size		a low wall			vn put_direction-9.4 «NP V NP PP.destination»: subject=Theme from wall=Destination

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 happens?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	2 happens	nsubj
2	happens	happen	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	?	?	PUNCT	_	2 happens	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	happen	present							vn occur-48.3-1 «NP V»: agent=Theme

The options

Option 1 · ← Mova's choice

The steel ball lands much sooner

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 ball	det
2	steel	steel	NOUN	Number=Sing	3 ball	compound
3	ball	ball	NOUN	Number=Sing	4 lands	nsubj
4	lands	land	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	much	much	ADV	_	6 sooner	advmod
6	sooner	soon	ADV	Degree=Cmp	4 lands	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	land	present	the steel ball					soon property	vn pocket-9.10-1 «NP V»: agent=Theme

Option 2

The rubber ball floats upward

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 ball	det
2	rubber	rubber	NOUN	Number=Sing	3 ball	compound
3	ball	ball	NOUN	Number=Sing	4 floats	nsubj
4	floats	float	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	upward	upward	ADV	_	4 floats	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	float	present	the rubber ball					upward property	vn run-51.3.2-2 «NP V»: agent=Theme

Option 3 · ✓ the right answer

They land almost together

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 land	nsubj
2	land	land	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	almost	almost	ADV	_	4 together	advmod
4	together	together	ADV	_	2 land	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	land	present	They					together property	vn pocket-9.10-1 «NP V»: agent=Theme

Option 4

The rubber ball lands much sooner

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 ball	det
2	rubber	rubber	NOUN	Number=Sing	3 ball	compound
3	ball	ball	NOUN	Number=Sing	4 lands	nsubj
4	lands	land	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	much	much	ADV	_	6 sooner	advmod
6	sooner	soon	ADV	Degree=Cmp	4 lands	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	land	present	the rubber ball					soon property	vn pocket-9.10-1 «NP V»: agent=Theme

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/world/6-gravity/t9/