#replacing__replacement  the act of furnishing an equivalent person or thing in the place of another; "replacing the star will not be easy"
  supertype:  #substitution__exchange  the act of putting one one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help
  subtype:  #novation  (law) the replacement of one obligation by another by mutual agreement of both parties; usually the replacement of one of the original parties to a contract with the consent of the remaining party
  subtype:  #pitching_change  replacing a pitcher in baseball
  subtype:  #supersedure__supersession  act of replacing one person or thing by another especially one held to be superior
  subtype:  #supplanting__displacement  act of taking the place of another especially using underhanded tactics

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