(Program
  (Return
    (Call
      (MemberAccess
        (Call
          (MemberAccess
            (Call
              (MemberAccess
                (Identifier)
                (Identifier))
              (Empty))
            (Identifier))
          (MemberAccess
          { (Identifier)
          ->(Identifier) }
            (Identifier))
          (Empty))
        (Identifier))
      (MemberAccess
      { (Identifier)
      ->(Identifier) }
        (Identifier))
      (Empty))))