MAYBE
174.77/55.34	MAYBE
174.77/55.34	
174.77/55.34	Problem:
174.77/55.34	 a(a(a(x1))) -> b(b(c(c(x1))))
174.77/55.34	 c(b(x1)) -> a(a(c(x1)))
174.77/55.34	
174.77/55.34	Proof:
174.77/55.34	 Open
174.77/55.35	EOF