197.54/50.53	MAYBE
197.54/50.53	
197.54/50.53	Problem:
197.54/50.53	 b(b(c(a(a(a(a(a(a(a(x1)))))))))) -> a(a(a(a(a(a(a(a(b(b(c(b(b(c(x1))))))))))))))
197.54/50.53	
197.54/50.53	Proof:
197.54/50.53	 Open
197.54/50.53	EOF