"A point, typically described using a coordinate system relative to Earth, such as WGS84.\n " . "point" . " \nUniquely identified by lat/long/alt. i.e.\n\nspaciallyIntersects(P1, P2) :- lat(P1, LAT), long(P1, LONG), alt(P1, ALT),\n lat(P2, LAT), long(P2, LONG), alt(P2, ALT).\n\nsameThing(P1, P2) :- type(P1, Point), type(P2, Point), spaciallyIntersects(P1, P2).\n " . . . . .