greater { hop { filter_eq { all_rows ; class ; f - 20 } ; quantity made } ; hop { filter_eq { all_rows ; class ; f - 22 } ; quantity made } } = true
select the rows whose class record fuzzily matches to f  20 . take the quantity made record of this row . select the rows whose class record fuzzily matches to f  22 . take the quantity made record of this row . the first record is greater than the second record .