In {TAIL ~ an exemplary embodiment}, {HEAD ~ users} of the system are provided with a list of n firms 
In
In { TAIL ~ an exemplary embodiment } , { HEAD ~ users } of the system are provided with a list of n firms
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH