196.85/50.36	MAYBE
196.85/50.36	
196.85/50.36	Problem:
196.85/50.36	 b(b(x1)) -> b(a(x1))
196.85/50.36	 a(b(x1)) -> b(c(c(x1)))
196.85/50.36	 a(c(x1)) -> a(a(x1))
196.85/50.36	 c(a(x1)) -> b(a(a(x1)))
196.85/50.36	
196.85/50.36	Proof:
196.85/50.36	 Open
196.85/50.37	EOF