Relation pm#relation_to_spatial_object (*,spatial_object)  in WebKB, prefer using relations "from" a spatial object
  supertype:  spatial_relation_to_entity_with_spatial_feature
  subtype:  relation_to_another_spatial_object (spatial_object,spatial_object)
     subtype:  location (spatial_object,spatial_object)
        subtype:  address__addres (spatial_object -> spatial_object)
           subtype:  main_address (spatial_object -> spatial_object)
           subtype:  secondary_address__secondaryaddres (spatial_object -> spatial_object)
        subtype:  above (spatial_object -> spatial_object)
           subtype:  on (spatial_object -> spatial_object)
        subtype:  below (spatial_object,spatial_object)
        subtype:  near (spatial_object -> spatial_object)
           subtype:  touching (spatial_object -> spatial_object)
        subtype:  far_from__farfrom (spatial_object,spatial_object)
        subtype:  exterior__in (spatial_object -> spatial_object)
        subtype:  interior (spatial_object,spatial_object)
        subtype:  before_location__before (spatial_object,spatial_object)
     subtype:  spatial_part__spatialpart (spatial_object,spatial_object)
        subtype:  physical_part (physical_entity,physical_entity)
  subtype:  where_fn__wherefn (physical,time_point -> region)  maps an object and a time_point at which the object exists to the region where the object existed at that time_point