Thing thing Possible Individual possible_individual Arranged Individual arranged_individual Event event Point In Time point_in_time Period In Time period_in_time Physical Object physical_object Materialized Physical Object materialized_physical_object Functional Physical Object functional_physical_object Stream stream Spatial Location spatial_location Activity activity Actual Individual actual_individual Whole Life Individual whole_life_individual Abstract Object abstract_object Class class Role And Domain role_and_domain Role role Participating Role And Domain participating_role_and_domain Class Of Individual class_of_individual Class Of Event class_of_event Class Of Point In Time class_of_point_in_time Class Of Arranged Individual class_of_arranged_individual Class Of Atom class_of_atom Phase phase Class Of Biological Matter class_of_biological_matter Class Of Functional Object class_of_functional_object Class Of Compound class_of_compound Class Of Molecule class_of_molecule Class Of Composite Material class_of_composite_material Crystalline Structure crystalline_structure Class Of Sub Atomic Particle class_of_sub_atomic_particle Class Of Information Presentation class_of_information_presentation Class Of Information Representation class_of_information_representation Class Of EXPRESS Information Representation class_of_EXPRESS_information_representation EXPRESS String EXPRESS_string EXPRESS Integer EXPRESS_integer EXPRESS Real EXPRESS_real EXPRESS Logical EXPRESS_logical EXPRESS Boolean EXPRESS_Boolean EXPRESS Binary EXPRESS_binary Representation Of Gregorian Date And UTC Time representation_of_Gregorian_date_and_UTC_time Class Of Particulate Material class_of_particulate_material Class Of Organization class_of_organization Class Of Activity class_of_activity Class Of Information Object class_of_information_object Class Of Feature class_of_feature Class Of Organism class_of_organism Class Of Person class_of_person Class Of Inanimate Physical Object class_of_inanimate_physical_object Property property Shape shape Multidimensional Property multidimensional_property Multidimensional Object multidimensional_object Multidimensional Property Space multidimensional_property_space Property Space property_space Class Of Property class_of_property Class Of Class Of Individual class_of_class_of_individual Class Of Class class_of_class Class Of Abstract Object class_of_abstract_object Class Of Relationship class_of_relationship