#post.visual_signal__stake  a pole or stake set up to mark something (as the start or end of a race track)
  supertype:  #visual_signal  a signal that involves visual communication
  subtype:  #starting_post  a post marking the starting point of a race (especially a horse race)
  subtype:  #winning_post__winningpost  the post at the end of a racecourse

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