198.10/50.37	MAYBE
198.10/50.37	
198.10/50.37	Problem:
198.10/50.37	 b(a(b(a(a(a(a(a(a(a(x1)))))))))) -> a(a(a(a(a(a(a(b(a(b(b(a(b(a(x1))))))))))))))
198.10/50.37	
198.10/50.37	Proof:
198.10/50.37	 Open
198.10/50.38	EOF