less { hop { filter_eq { all_rows ; singer ; micaela } ; position } ; hop { filter_eq { all_rows ; singer ; serena abrami } ; position } } = true
select the rows whose singer record fuzzily matches to micaela . take the position record of this row . select the rows whose singer record fuzzily matches to serena abrami . take the position record of this row . the first record is less than the second record .