My other theory would be wobblers.
1	My	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	3	nmod:poss	3:nmod:poss	_
2	other	other	ADJ	JJ	Degree=Pos	3	amod	3:amod	_
3	theory	theory	NOUN	NN	Number=Sing	6	nsubj	6:nsubj	_
4	would	would	AUX	MD	VerbForm=Fin	6	aux	6:aux	_
5	be	be	AUX	VB	VerbForm=Inf	6	cop	6:cop	_
6	wobblers	wobbler	NOUN	NNS	Number=Plur	0	root	0:root	SpaceAfter=No
7	.	.	PUNCT	.	_	6	punct	6:punct	_
