#workweek__week  hours or days of work in a calendar week; "they worked a 40-hour week"
  supertype:  #work_time  a time period when you are required to work
  part of:  #calendar_week__week  a period of seven consecutive days starting on Sunday
     part of:  #calendar_month__month  one of the twelve divisions of the calendar year; "he paid the bill last month"

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