greater { hop { filter_eq { all_rows ; class ; 6ai } ; quantity } ; hop { filter_eq { all_rows ; class ; 6d } ; quantity } } = true
select the rows whose class record fuzzily matches to 6ai . take the quantity record of this row . select the rows whose class record fuzzily matches to 6d . take the quantity record of this row . the first record is greater than the second record .