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