#ball.dance  a lavish formal dance; "she was the loveliest girl at the ball"
  supertype:  #dance.party  a party of people assembled for dancing
  part:  #promenade
  subtype:  #prom__promenade  a formal dance held for a school class toward the end of the academic year
  subtype:  #cotilion__cotillion  a ball at which young ladies are presented to society
  subtype:  #masked_ball__masquerade_ball__fancy-dress_ball__fancydressball  a ball at which guests wear costumes and masks

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