{HEAD ~ a precautionary action application}, responsive to the positioning system and {TAIL ~ the database}, that provides a precautionary action when the positioning system determines that the current location is approaching a location associated with precautionary action data 
{ HEAD ~ a precautionary action application } , responsive to the positioning system and { TAIL ~ the database } , that provides a precautionary action when the positioning system determines that the current location is approaching a location associated with precautionary action data
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH