render to said caller, provided said caller does not indicated {HEAD ~ the new location}, information of said first category that is pertinent to said {TAIL ~ default location}, and 
render to said caller , provided said caller does not indicated { HEAD ~ the new location } , information of said first category that is pertinent to said { TAIL ~ default location } , and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH