sumo#sentient_agent  an agent that has rights but may or may not have responsibilities and the ability to reason; if the latter are present, then the agent is also a cognitive_agent; domesticated animals are an example of sentient_agents that are not also cognitive_agents
  closed_exclusion:  non_sentient_cognitive_agent
  subtype:  cognitive_agent  (many specializations)$ sentient_agent with responsibilities and the ability to reason, deliberate, make plans, etc; this is essentially the legal/ethical notion of a person; chimpanzees, gorillas, dolphins, whales, and some extraterrestrials (if they exist) may be cognitive_agents
  supertype:  entity_that_can_be_or_was_alive  e.g., an animal, a cell
     supertype:  agentive_physical_object__APO  something or someone that can act on its own and produce changes in the world
        supertype:  physical_object__POB
           supertype:  physical_entity__object  spatial entity made of matter
              supertype:  physical_endurant__PED
                 supertype:  spatial_object__spatialobject  object which as a direct spatial location, e.g., physical object, spatial region or shape
                    supertype:  object__entity_with_spatial_feature  spatial object (space, location or physical object) or description medium/container (e.g., string, language, image); in a 4D ontology, an object is something whose spatiotemporal extent is thought of as dividing into spatial parts roughly parallel to the time-axis
                       supertype:  entity  something that can be "involved" in a situation
                          supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                       supertype:  physical__physical_thing  an entity that has a location in space-time; locations are themselves understood to have a location in space-time; click here for more details on the identical category sowa#physical_thing
                          supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                    supertype:  partially_tangible__partiallytangible  A subcollection of cyc#SpatialThing-Localized and cyc#TemporalThing. Each instance of cyc#PartiallyTangible has a tangible (i.e. material) part and a temporal extent (i.e. it exists in time). It might or might not also have an intangible part. For example, a particular copy of a book is made of matter, has temporal extent, and also has an intangible part: the information content of the text markings on its pages.
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                    supertype:  individual__particular___supertype_of_1st_order_types  all individuals (for concepts or relations) are implicitely or explicitely instance of that type
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                 supertype:  endurant__ED
                    supertype:  entity  something that can be "involved" in a situation
                    supertype:  thing  an object seen from a 3D (or endurantist) perspective, i.e. where a spatial entity may have a time independent identity, as opposed for example to the 4D perspective where each spatial entity has an associated time frame; click here and here for details
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                    supertype:  endurant_or_perdurant__ED_or_PD
                       supertype:  quality_or_endurant_or_perdurant__Q_or_ED_or_PD
                          supertype:  entity  a category from DOLCE or generalized by a category from DOLCE
                             supertype:  individual__particular___supertype_of_1st_order_types  all individuals (for concepts or relations) are implicitely or explicitely instance of that type
                 supertype:  PQ_or_PED_or_PR_or_PD
                    supertype:  quality_or_endurant_or_perdurant__Q_or_ED_or_PD
              supertype:  tangible  Something which is not intangible, something which is physical, made of matter. It does not matter whether things are real of imaginary. Therefore we consider Mickey Mouse's car and a hippogriff as  tangible things
                 supertype:  temporal_thing  The collection of all things that have temporal extent or location, i.e. things about which one might sensibly ask When? . cyc#TemporalThing thus contains many kinds of things, including events, physical objects, agreements, and abstract pieces of time. Note that cyc#TimePoint is a specialization of cyc#TemporalThing, since time points have temporal location, although they arguably lack temporal extent. Abstract things that are timeless -- such as mathematical sets, attributes, and numbers -- are of course _not_ instances of cyc#TemporalThing.
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
        supertype:  causal_entity__agent  something (animal or software agent) able to act
           supertype:  entity_playing_some_role  e.g., an agent, an owner
              supertype:  entity  something that can be "involved" in a situation
              supertype:  thing_that_can_be_seen_as_a_relation  usable as relation type
                 supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
           supertype:  causal_agent__cause__causal_agency  any entity that causes events to happen
              supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
           supertype:  temporal_thing  The collection of all things that have temporal extent or location, i.e. things about which one might sensibly ask When? . cyc#TemporalThing thus contains many kinds of things, including events, physical objects, agreements, and abstract pieces of time. Note that cyc#TimePoint is a specialization of cyc#TemporalThing, since time points have temporal location, although they arguably lack temporal extent. Abstract things that are timeless -- such as mathematical sets, attributes, and numbers -- are of course _not_ instances of cyc#TemporalThing.
  supertype:  cognitive_agent__cognitiveagent  for example an organization, an animal or an AI-agent
     supertype:  goal_directed_agent  goal directed causal entity, e.g., a problem solver or an interactional agent
        supertype:  causal_entity__agent  something (animal or software agent) able to act
        supertype:  processing_thing
           supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant

sentient_agent has many specializing statements. Browse its subtypes, or click here for a search form or here to represent such an object.