#hypertext  machine-readable text that is not sequential but is organized so that related items of information are connected; "Let me introduce the word hypertext to mean a body of written or pictorial material interconnected in such a complex way that it could not conveniently be presented or represented on paper"--Ted Nelson
  supertype:  #machine-readable_text  electronic text that is stored as strings of characters and that can be displayed in a variety of formats
  part of:  #object-oriented_database  a database in which the operations carried out on information items (data objects) are considered part of their definition

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