#computer_file  (computer science) a file maintained in computer-readable form
  subtype:  #backup_file {#binary_file #text_file} (pm)  #master_file  #disk_file  #transaction_file  #input_file  #output_file  #read-only_file
  supertype:  #file__data_file  a set of related records (either written or electronic) kept together
     supertype:  #document  anything serving as a representation of a person's thinking by means of symbolic marks
        supertype:  pm#document_element__document___DE  a part of a document or the whole document
           supertype:  pm#description_container__descriptioncontainer  file, image, ... but not a disk or a piece of paper
              supertype:  pm#description_content/medium/container__descriptioncontent/medium/container
                 supertype:  pm#non_spatial_object_that_is_not_an_attribute_or_quality_or_measure
                    supertype:  pm#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:  pm#entity  something that can be "involved" in a situation
                          supertype:  pm#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:  cyc#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:  cyc#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:  pm#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:  pm#individual__particular___supertype_of_1st_order_types  all individuals (for concepts or relations) are implicitely or explicitely instance of that type
                 supertype:  pm#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:  #representation  creation that is a visual or tangible rendering of someone or something
           supertype:  pm#entity_playing_some_role  e.g., an agent, an owner
              supertype:  pm#entity  something that can be "involved" in a situation
              supertype:  pm#thing_that_can_be_seen_as_a_relation  usable as relation type
                 supertype:  pm#thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                    supertype:  pm#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:  #creation_result__creation  an artifact that has been brought into existence by someone
              supertype:  pm#owned_entity__ownedentity
                 supertype:  pm#entity_playing_some_role  e.g., an agent, an owner
              supertype:  pm#created_thing__createdthing  e.g., entity or situation that results from a process; in WordNet, #creation_result is for entities while #resultant is for situation
                 supertype:  pm#thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant

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