#day_of_the_month__date  the specified day of the month; "what is the date today?"
  supertype:  particular_day__day  a day assigned to a particular purpose or observance; "Mother's Day"
  instance:  D-day
  subtype:  maturity_date__maturity__due_date__duedate  the date on which a financial obligation must be repaid
  subtype:  birthday  an anniversary of the day on which a person was born

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