(Program
  (Module
    (Identifier))
  (Function
    (Identifier)
    (Args)
    (If
      (FunctionCall
        (Identifier))
      (ExpressionStatements
        (FunctionCall
          (Identifier))))
    (If
      (Other "if_initializer"
        (VarDecl
          (Other "expression_list"
            (Identifier))
          (Other "expression_list"
            (FunctionCall
              (Identifier)))))
      (Identifier)
      (ExpressionStatements
        (FunctionCall
          (Identifier))))
    (If
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        (Identifier))
      (ExpressionStatements
        (FunctionCall
          (Identifier)))
      (Other "else_clause"
        (ExpressionStatements
          (FunctionCall
            (Identifier)))))
    (If
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        (VarDecl
          (Other "expression_list"
            (Identifier))
          (Other "expression_list"
            (NumberLiteral))))
      (RelationalOperator
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        (Other "<")
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                (Identifier)))))))))