197.16/50.48	MAYBE
197.16/50.48	
197.16/50.48	Problem:
197.16/50.48	 a(b(a(a(a(a(a(a(a(x1))))))))) -> a(a(a(a(a(a(a(a(a(b(a(b(a(b(x1))))))))))))))
197.16/50.48	
197.16/50.48	Proof:
197.16/50.48	 Open
197.16/50.49	EOF