and { only { filter_less { all_rows ; total votes ; 3000000 } } ; eq { hop { filter_less { all_rows ; total votes ; 3000000 } ; election } ; 2001 } } = true
select the rows whose total votes record is less than 3000000 . there is only one such row in the table . the election record of this unqiue row is 2001 .