class Airplane {
    var model: int;
  
    function Airplane() {
      model = 767;
    }
  } 

  class Airplane {
    var model: int;
  
    function Airplane() {
      model = 767;
    }
  } 
  var fifthJet : Airplane;
  fifthJet = new Airplane();
  fifthJet.model = 747;

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