#baseball_team  a team that plays baseball
  supertype:  #team__squad  a cooperative unit
  subtype:  #baseball_club  a team of professional baseball players who play and travel together; "each club played six home games with teams in its own division"
  member:  #pitcher  #catcher.position  #first_base.position  #second_base.position  #shortstop.position  #third_base  #left_field  #center_field  #right_field
  part:  #battery.team  a unit composed of the pitcher and catcher

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