'^d' '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' '([a-z]|[A-Z]|[0-9]|[\_\.]){3,}\@([a-z]|[A-Z]|[0-9]|[\_\.]){3,}\.([a-z]|[A-Z]|[0-9]|[\_\.]){2,}' '(()|[ ])[Nn]em(()|[\.!\?, ])'