MAYBE
238.37/60.56	MAYBE
238.37/60.56	
238.37/60.56	Problem:
238.37/60.56	 a(a(b(b(x1)))) -> b(b(c(c(a(a(x1))))))
238.37/60.56	 b(b(c(c(x1)))) -> c(c(b(b(b(b(x1))))))
238.37/60.56	 b(b(a(a(x1)))) -> a(a(c(c(b(b(x1))))))
238.37/60.56	
238.37/60.56	Proof:
238.37/60.56	 Open
238.37/60.57	EOF