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