sumo#Attribute
  exclusion:  quantity  type
  supertype:  attribute_or_quality_or_measure (pm)  abstract
  instance of:  attribute_class (pm)
  subtype:  internal_attribute  any attribute of an entity that is an internal property of the entity, e.g., its shape, its color, its fragility, etc
  subtype:  relational_attribute  any attribute that an entity has by virtue of a relationship that it bears to another entity or set of entities, e.g., social_roles and positional_attributes
     subtype:  normative_attribute__normativeattribute  attribute specific to morality, legality, aesthetics, etiquette, etc; many of such attributes express a judgement that something ought or ought not to be the case
        subtype:  subjective_assessment_attribute  normative_attribute which lacks an objective criterion for its attribution, i.e. the attribution of such an attribute varies from subject to subject and even with respect to the same subject over time; in the SUMO, if a category from such an external knowledge source seems to lack objective criteria for its attribution, this category is assigned to this class
        subtype:  objective_norm__objectivenorm  normative_attribute  associated with an objective criterion for their attribution, i.e. there is broad consensus about the cases where these attributes are applicable
  subtype:  quality__Q  an attribute/dimension of something, e.g., its color, but not the measure of this color
     subtype:  temporal_quality__TQ  e.g., a date or a duration, but not its measure/value
        subtype:  Temporal_location__TL
     subtype:  physical_quality__PQ  e.g., weight, color, as attributes
        subtype:  Spatial_location__SL
     subtype:  abstract_quality__AQ  e.g., an asset value (but not any actual measure of this value)

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