greater { hop { filter_eq { all_rows ; event ; rock & blues festival } ; acts } ; hop { filter_eq { all_rows ; event ; a day at the races } ; acts } } = true
select the rows whose event record fuzzily matches to rock  blues festival . take the acts record of this row . select the rows whose event record fuzzily matches to a day at the races . take the acts record of this row . the first record is greater than the second record .