199.07/50.74	MAYBE
199.07/50.74	
199.07/50.74	Problem:
199.07/50.74	 a(b(a(a(b(a(x1)))))) -> a(a(b(a(b(a(b(a(a(b(x1))))))))))
199.07/50.74	
199.07/50.74	Proof:
199.07/50.74	 Open
199.07/50.74	EOF