eq { diff { hop { filter_eq { all_rows ; name ; phil karn } ; goals } ; hop { filter_eq { all_rows ; name ; michael apple } ; goals } } ; 2 } = true
select the rows whose name record fuzzily matches to phil karn . take the goals record of this row . select the rows whose name record fuzzily matches to michael apple . take the goals record of this row . the first record is 2 larger than the second record .