less { hop { filter_eq { all_rows ; season ; 2009 } ; giant slalom } ; hop { filter_eq { all_rows ; season ; 2011 } ; giant slalom } } = true
select the rows whose season record fuzzily matches to 2009 . take the giant slalom record of this row . select the rows whose season record fuzzily matches to 2011 . take the giant slalom record of this row . the first record is less than the second record .