MAYBE
227.11/57.43	MAYBE
227.11/57.43	
227.11/57.43	Problem:
227.11/57.43	 a(a(x1)) -> c(b(a(b(a(x1)))))
227.11/57.43	 b(a(b(x1))) -> b(x1)
227.11/57.43	 a(a(a(x1))) -> c(c(a(x1)))
227.11/57.43	 c(c(x1)) -> a(b(c(b(a(x1)))))
227.11/57.43	 a(c(a(x1))) -> c(c(a(x1)))
227.11/57.43	 c(a(c(x1))) -> a(a(c(x1)))
227.11/57.43	
227.11/57.43	Proof:
227.11/57.43	 Open
227.11/57.44	EOF