(Program
  (Module
    (Identifier))
  (Function
    (Identifier)
    (Args)
    (Switch
      (Case
        (Case
          (Other "expression_list"
            (RelationalOperator
            { (Identifier)
            ->(Identifier) }
              (Other "<")
            { (Identifier)
            ->(Identifier) })))
        (FunctionCall
          (Identifier)))
    {+(Case
      {+(Case
        {+(Other "expression_list"
          {+(RelationalOperator
            {+(Identifier)+}
            {+(Other "<")+}
            {+(Identifier)+})+})+})+}
      {+(FunctionCall
        {+(Identifier)+})+})+}
      (Case
        (Case
          (Other "expression_list"
            (RelationalOperator
            { (Identifier)
            ->(Identifier) }
            { (Other "<")
            ->(Other "==") }
            { (Identifier)
            ->(NumberLiteral) })))
        (FunctionCall
        { (Identifier)
        ->(Identifier) }))
    {-(Case
      {-(Case
        {-(Other "expression_list"
          {-(RelationalOperator
            {-(Identifier)-}
            {-(Other "==")-}
            {-(NumberLiteral)-})-})-})-}
      {-(FunctionCall
        {-(Identifier)-})-})-})))