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