197.87/50.61	MAYBE
197.87/50.61	
197.87/50.61	Problem:
197.87/50.61	 a(b(a(a(a(a(a(a(a(x1))))))))) -> a(a(a(a(a(a(a(a(b(a(a(b(a(b(x1))))))))))))))
197.87/50.61	
197.87/50.61	Proof:
197.87/50.61	 Open
197.87/50.61	EOF