eq { diff { hop { filter_eq { all_rows ; airline ; tam } ; rank } ; hop { filter_eq { all_rows ; airline ; gol } ; rank } } ; -1 better } = true
select the rows whose airline record fuzzily matches to tam . take the rank record of this row . select the rows whose airline record fuzzily matches to gol . take the rank record of this row . the second record is 1 better larger than the first record .