and { only { filter_greater { all_rows ; attendance ; 59000 } } ; eq { hop { filter_greater { all_rows ; attendance ; 59000 } ; date } ; october 30 , 1977 } } = true
select the rows whose attendance record is greater than 59000 . there is only one such row in the table . the date record of this unqiue row is october 30 , 1977 .