#introduction  the first section of a communication
  supertype:  #section__subdivision  a self-contained part of a larger composition; "he always turns first to the business section"; "the history of this work is discussed in the next section"
  subtype:  #opening.introduction  #foreword  #preamble  #prologue
  part of:  #narration__narrative__story__recital__yarn  an account describing incidents or events; "a farfetched narrative"; "after dinner he told the children stories of his adventures"
  part of:  #address.speech_act__addres  a formal spoken communication delivered to an audience; "he listened to an address on minor Roman poets"

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