198.20/50.71	MAYBE
198.20/50.71	
198.20/50.71	Problem:
198.20/50.71	 b(a(b(a(b(a(a(a(b(a(x1)))))))))) -> a(a(b(a(a(a(b(a(b(a(b(a(b(a(x1))))))))))))))
198.20/50.71	
198.20/50.71	Proof:
198.20/50.71	 Open
198.20/50.71	EOF