pm#domain__field_of_study__discipline__subject_area__subjectarea__subject_field__subjectfield__field__study__bailiwick__branch_of_knowledge  a branch of knowledge; "in what discipline is his doctorate?"; "teachers should be well trained in their subject"; "anthropology is the study of human beings"
  closed_exclusion:  thing_that_is_not_a_domain
  subtype:  major.field_of_study  frontier.field_of_study  ology  scientific_discipline  humanistic_discipline
  instance:  allometry  bibliotics  architecture.field_of_study  engineering_science  theology.field_of_study  military_science  numerology
  equal:  field_of_study (pm)  Generic-Area-Of-Interest (pm)
  object:  knowledge_domain (pm)
  supertype:  non_spatial_collection__nonspatialcollection__true_collection  something gathering separated things (entities/situations) and that is not a spatial object
     supertype:  non_spatial_object_that_is_not_an_attribute_or_quality_or_measure
        supertype:  non_spatial_object__nonspatialobject  abstraction or description content/medium/container (a description medium that has some spatial feature is both instance of sumo#object and pm#non_spatial_object
           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:  intangible  The collection of things that are not physical -- are not made of, or encoded in, matter. Every cyc#Collection is a cyc#intangible (even if its instances are tangible), and so are some cyc#individuals.  Caution: do not confuse `tangibility' with `perceivability' -- humans can perceive light even though it's intangible--at least in a sense.
              supertype:  partially_intangible__partiallyintangible  The collection of things that either are wholly intangible (see cyc#Intangible) or have at least one intangible (i.e. immaterial) part (see cyc#intangibleParts). This includes intangible individuals, such as instances of cyc#Number-General  or cyc#Agreement, as well as non-individuals (all of which are intangible), i.e. instances of cyc#SetOrCollection.  It also includes things that have both tangible and intangible components (see cyc#CompositeTangibleAndIntangibleObject),  such as a printed copy of a newspaper (as its information content is intangible) or a person (as her mental states are intangible).
                 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:  collection  something gathering separated things (entities/situations)
        supertype:  divisible_entity__divisibleentity  many classifications under this category are application-dependant
           supertype:  entity  something that can be "involved" in a situation
           supertype:  divisible_thing__divisiblething
              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

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