SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function less (children 1)
     ExpressionList (children 2)
      Function today (children 1)
       ExpressionList
      Function minus (children 1)
       ExpressionList (children 2)
        Function minus (children 1)
         ExpressionList (children 2)
          Literal UInt64_2018
          Literal UInt64_11
        Literal UInt64_14