199.08/50.91	MAYBE
199.08/50.91	
199.08/50.91	Problem:
199.08/50.91	 b(a(a(b(a(a(b(b(a(a(b(x1))))))))))) -> a(a(b(b(a(a(b(a(a(b(a(a(b(b(x1))))))))))))))
199.08/50.91	
199.08/50.91	Proof:
199.08/50.91	 Open
199.08/50.92	EOF