MAYBE
152.64/55.42	MAYBE
152.64/55.42	
152.64/55.42	Problem:
152.64/55.42	 a(b(c(x1))) -> b(x1)
152.64/55.42	 c(b(b(x1))) -> a(x1)
152.64/55.42	 c(x1) -> b(x1)
152.64/55.42	 a(a(x1)) -> c(b(a(c(x1))))
152.64/55.42	
152.64/55.42	Proof:
152.64/55.42	 Open
152.64/55.42	EOF