(Statements
{-(Throw
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    {-(TextElement)-}
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{-(Throw
  {-(Statements
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    {-(Identifier)-})-})-}
  (Throw
    (Statements))
{+(Throw
  {+(Call
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    {+(TextElement)+}
    {+(Empty)+})+})+}
{+(Throw
  {+(Statements
    {+(Call
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      {+(TextElement)+}
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    {+(Identifier)+})+})+})