SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Identifier a
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_02559
   Function and (children 1)
    ExpressionList (children 2)
     Function less (children 1)
      ExpressionList (children 2)
       Function sin (children 1)
        ExpressionList (children 1)
         Identifier a
       Identifier b
     Function less (children 1)
      ExpressionList (children 2)
       Function sin (children 1)
        ExpressionList (children 1)
         Identifier a
       Identifier c
