greater { hop { filter_eq { all_rows ; vessel ; smeaton array } ; max speed } ; hop { filter_eq { all_rows ; vessel ; marianarray } ; max speed } } = true
select the rows whose vessel record fuzzily matches to smeaton array . take the max speed record of this row . select the rows whose vessel record fuzzily matches to marianarray . take the max speed record of this row . the first record is greater than the second record .