#sleep.time_period__nap  a period of time spent sleeping; "he felt better after a little sleep"; "a brief nap"
  supertype:  #time_period__period__period_of_time  an amount of time; "a time period of 30 years"; "hastened the period of his recovery"
  subtype:  #beauty_sleep  sleep before midnight
  subtype:  #kip.sleep  (British) sleep; "roused him from his kip"

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