There is a whole topic which is called asymptotic groups theory.
1	There	there	PRON	EX	PronType=Dem	2	expl	2:expl	Discourse=context-background:12->27:1
2	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	5:det	Entity=(22-abstract-new-cf1-3-coref
4	whole	whole	ADJ	JJ	Degree=Pos	5	amod	5:amod	_
5	topic	topic	NOUN	NN	Number=Sing	2	nsubj	2:nsubj|8:nsubj:pass	_
6	which	which	PRON	WDT	PronType=Rel	8	nsubj:pass	5:ref	Discourse=elaboration-attribute:13->12:0
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	8:aux:pass	_
8	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl:relcl	5:acl:relcl	_
9	asymptotic	asymptotic	ADJ	JJ	Degree=Pos	11	amod	11:amod	Entity=(22-abstract-giv:act-cf1-3-coref
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12	.	.	PUNCT	.	_	2	punct	2:punct	_
