Preferable, restricted tokens are used to implement the location based discrimination by restricting the access of {TAIL ~ users} connecting from {HEAD ~ less trusted locations} 
Preferable , restricted tokens are used to implement the location based discrimination by restricting the access of { TAIL ~ users } connecting from { HEAD ~ less trusted locations }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD