How-to: reach out to airport data

• airportLookup.n3 relates airport codes to lat/long via published data

#...
{
  ?WHERE apt:iataCode ?CCC.
  ?PG log:uri [ is str:concatenation of
               ("http://www.daml.org/cgi-bin/airport?" ?CCC) ];
}
  log:implies {
   ?WHERE :airportInfo ?PG
}.

#...

# believe what daml.org says about airport latitutde/longitudes...
:AirportProperty is rdf:type of
  apt:latitude,
  apt:name,
  apt:iataCode,
  apt:icaoCode,
  apt:location,
  apt:latitude,
  apt:longitude,
  apt:elevation.

{
  :P a :AirportProperty.
  ?WHERE a :InterestingPlace; apt:iataCode :K; :airportInfo ?PG.
  ?PG log:semantics [
      log:includes {
        [] apt:iataCode :K; :P :X.
      }
    ].
} log:implies {
  ?WHERE :P :X.
}.
	

these rules are slighly bogus, though they work. @@clean-up