#minute_of_arc__minute__arcminute  a unit of angular distance equal to a 60th of a degree
  supertype:  angular_unit__angularunit  a unit of measurement for angles
  part:  arcsecond
  part of:  arcdegree__degree  a measure for arcs and angles; "there are 360 degrees in a circle"
     part of:  oxtant  a unit of angular distance equal to half a quadrant
        part of:  quadrant.angular_unit__right_angle__rightangle  a quarter of the circumference of a circle
           part of:  straight_angle  an angle of 180 degrees
              part of:  circumference  the length of the closed curve of a circle
     part of:  sextant.angular_unit  a unit of angular distance equal to 60 degrees
        part of:  circumference  the length of the closed curve of a circle

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