In response to {TAIL ~ the request}, {HEAD ~ the customization application} allows a user to modify a set of features associated with the user role to form a set of customized features 
In response to { TAIL ~ the request } , { HEAD ~ the customization application } allows a user to modify a set of features associated with the user role to form a set of customized features
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH