#game_line__line  in games or sports; a mark indicating positions or bounds of the playing area
  supertype:  #region.location__part  the extended spatial location of something; "the farming regions of France"; "religions in all parts of the world"; "regions of outer space"
  subtype:  #balkline__baulk_line__baulkline__string_line  line across a billiard table behind which the cue balls are placed at the start of a game
  subtype:  #finishing_line__finishingline__finish_line  a line indicating the location of the finish of a race
     subtype:  #tape.finishing_line  the finishing line for a foot race; "he broke the tape in record time"
     subtype:  #wire.finishing_line  the finishing line on a racetrack
  subtype:  #foul_line  lines through 1st and 3rd base indicating the boundaries of a baseball field
  subtype:  #bowling_foul_line__foul_line  a line across a bowling alley that a bowler must not cross
  subtype:  #basketball_foul_line__foul_line  a line from which basketball players take penalty shots
  subtype:  #baseball_baseline__baseline  the lines a baseball player must follow while running the bases
  subtype:  #tennis_baseline__baseline  the back line at each end of a tennis court
  subtype:  #goal_line  a line marking each end of the playing field or pitch; where the goals stand
  subtype:  #red_line__redline  a line that is colored red bisects an ice hockey rink
  subtype:  #scrimmage_line__scrimmageline__line_of_scrimmage  line parallel to the goal lines where football linesmen line up at the start of each play in American football; "the runner was tackled at the line of scrimmage"
  subtype:  #out_of-bounds__sideline  a line that marks the side boundary of a playing field
     subtype:  #touchline  either of the sidelines in soccer or Rugby
  subtype:  #starting_line__start  a line indicating the location of the start of a race
  subtype:  #yardline  in football; line parallel to the goal lines indicating position on the field

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