less { hop { filter_eq { all_rows ; year ; 2004 } ; rank } ; hop { filter_eq { all_rows ; year ; 2006 } ; rank } } = true
select the rows whose year record fuzzily matches to 2004 . take the rank record of this row . select the rows whose year record fuzzily matches to 2006 . take the rank record of this row . the first record is less than the second record .