Balance: the centre of gravity, sentence 0

Every object acts as if all its weight sat at one point, its centre of gravity, and it balances when that point is right above what holds it up.

Who acts: object, weight, point · What happens: act, sit, balance, be, hold up · To what, where: one point, point

This is a sentence of the lesson «Balance: the centre of gravity» of the physics course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (object, weight, point), what happens, when and where, as Mova's frames read it from the tree.

The tree

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Every	every	DET	PronType=Tot	2 object	det
2	object	object	NOUN	Number=Sing	3 acts	nsubj
3	acts	act	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	as	as	SCONJ	_	9 sat	mark
5	if	if	SCONJ	_	9 sat	mark
6	all	all	DET	PronType=Tot	8 weight	det
7	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	8 weight	nmod:poss
8	weight	weight	NOUN	Number=Sing	9 sat	nsubj
9	sat	sit	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	3 acts	advcl
10	at	at	ADP	_	12 point	case
11	one	one	NUM	NumForm=Word NumType=Card	12 point	nummod
12	point	point	NOUN	Number=Sing	9 sat	obl
13	,	,	PUNCT	_	15 centre	punct
14	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	15 centre	nmod:poss
15	centre	centre	NOUN	Number=Sing	12 point	appos
16	of	of	ADP	_	17 gravity	case
17	gravity	gravity	NOUN	Number=Sing	15 centre	nmod
18	,	,	PUNCT	_	21 balances	punct
19	and	and	CCONJ	_	21 balances	cc
20	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	21 balances	nsubj
21	balances	balance	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 acts	conj
22	when	when	ADV	PronType=Int	26 right	advmod
23	that	that	DET	Number=Sing PronType=Dem	24 point	det
24	point	point	NOUN	Number=Sing	26 right	nsubj
25	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	26 right	cop
26	right	right	ADJ	Degree=Pos	21 balances	advcl
27	above	above	ADP	_	29 holds	case
28	what	what	PRON	PronType=Int	29 holds	nsubj
29	holds	hold	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	26 right	obl
30	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	29 holds	obj
31	up	up	ADP	_	29 holds	compound:prt
32	.	.	PUNCT	_	3 acts	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	where	other	roles by
1	act	present	every object				vn act-114-1-1 «NP V»: agent=Agent
2	sit	past	object's weight		one point		vn assuming_position-50 «NP V PP.location»: agent=Agent at point=Location
3	balance	present	weight				vn spatial_configuration-47.6-1 «NP V»: agent=Theme
4	is	present	that point			right property	tree rules
5	hold up	present		point			vn support-15.3-1 «NP V NP»: agent=Pivot it=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.

Licence: CC BY-SA 4.0, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, mova-school-agreed-en.conllu) is part. The lessons were written for Mova's primary school. Sentence school:physics:008-balance-the-centre-of-gravity.lesson:0.

The tree: Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R8-pos-agree ×1. The frames are read from the tree by Mova's frames reader (prag) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the release 0.4.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/physics/8-balance-the-centre-of-gravity/0/