less { hop { filter_eq { all_rows ; version ; german radio edit } ; length } ; hop { filter_eq { all_rows ; version ; album version } ; length } } = true
select the rows whose version record fuzzily matches to german radio edit . take the length record of this row . select the rows whose version record fuzzily matches to album version . take the length record of this row . the first record is less than the second record .