render to said caller, provided said caller indicates said new location, information of {HEAD ~ said first category} that is pertinent to said {TAIL ~ new location} 
is pertinent to
render to said caller , provided said caller indicates said new location , information of { HEAD ~ said first category } that is pertinent to said { TAIL ~ new location }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL OTH TAIL TAIL TAIL TAIL TAIL TAIL