SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function hasSubsequence (children 1)
     ExpressionList (children 2)
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'garbage\'
        Literal \'Nullable(String)\'
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'arg\'
        Literal \'Nullable(String)\'
