pm#task  processes modelled in knowledge acquisition, e.g., a diagnostic
  subtype:  real_life_task  a task composed of more basic tasks
  supertype:  problem_solving_process__problemsolvingproces  cognitive activity to solve a problem
     supertype:  process__proces  situation commonly considered as making a change during some period of time
        supertype:  situation  something that "occurs" in a real/imaginary region of time and space
           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:  process_or_process_description
           supertype:  processing_thing
              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

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