MAYBE
135.67/55.34	MAYBE
135.67/55.34	
135.67/55.34	Problem:
135.67/55.34	 a(x1) -> b(x1)
135.67/55.34	 a(b(b(c(x1)))) -> c(c(a(a(a(a(x1))))))
135.67/55.34	
135.67/55.34	Proof:
135.67/55.34	 Open
135.67/55.34	EOF