SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function hasSubsequence (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal \'garbage\'
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal \'garbage1\'
