Spatial Associations
FIND SPATIAL ASSOCIATION RULE DESCRIBING "Golf Course"
FROM Washington_Golf_courses, Washington
WHERE CLOSE_TO(Washington_Golf_courses.Obj, Washington.Obj, "3 km")
AND Washington.CFCC <> "D81"
IN RELEVANCE TO Washington_Golf_courses.Obj, Washington.Obj, CFCC
SET SUPPORT THRESHOLD 0.5