def furthest_apart_in_state(directorypath, state): """ given the directory where to find entity and region information and a state, return a tuple of the two entity IDs in that state that are furthest apart. If there is only one entity in the state, return None. If there are no entities in the state, return None. :param directorypath: :param state: :return: tuple of two entity IDs """ pass FILE LOOKS LIKE THIS: ID,City,State,Latitude,Longitude A45419E,Plattsburgh,NY,44.704021,-73.471148 A19312D,Aiken,SC,33.554433,-81.69588 A90172S,Tuscaloosa,AL,33.170238,-87.616169 A19394D,Alexandria,VA,38.819853,-77.059645 A27218D,Pittsburgh,PA,40.47441,-79.950968 A68626D,Meadville,PA,41.611599,-80.114891 A17494D,Allentown,PA,40.602658,-75.469236 A86034S,Tonawanda,NY,42.99704,-78.878659 A45142D,Asheville,NC,35.602711,-82.567281 A38298S,Atlanta,GA,33.844371,-84.47405 A14497Y,Roswell,GA,34.055198,-84.370475 A25954D,Austin,TX,30.326374,-97.771258 B46374X,Fairhope,AL,30.480713,-87.861306 B52199S,Cedar Park,TX,30.503949,-97.8242 B83854R,Abingdon,MD,39.472579,-76.277279 B61771D,Blacksburg,VA,37.256283,-80.43473 B84417D,Boerne,TX,29.893137,-98.685719 B71687D,Brevard,NC,35.174351,-82.753971 C77186D,Camden,SC,34.313477,-80.612489 C34069Y,Aldie,VA,38.957718,-77.60375 C27257X,Carrollton,TX,32.962473,-96.89817 C47372X,Columbia,MD,39.206132,-76.887905 H37576E,Cockeysville,MD,39.47931,-76.62996 H51432D,Huntsville,AL,34.718428,-86.556439 A19744F,Albuquerque,NM,35.199592,-106.644831