One or more matched map objects are identified in the database such that {HEAD ~ the respective descriptors} of {TAIL ~ the matched map} objects each match at least one of the query terms 
of
One or more matched map objects are identified in the database such that { HEAD ~ the respective descriptors } of { TAIL ~ the matched map } objects each match at least one of the query terms
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH