The user roles in the role database are available for {HEAD ~ use} by a plurality of users of {TAIL ~ the application} 
The user roles in the role database are available for { HEAD ~ use } by a plurality of users of { TAIL ~ the application }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL