less { hop { filter_eq { all_rows ; episode title ; new york } ; original airdate } ; hop { filter_eq { all_rows ; episode title ; beneath vesuvius } ; original airdate } } = true
select the rows whose episode title record fuzzily matches to new york . take the original airdate record of this row . select the rows whose episode title record fuzzily matches to beneath vesuvius . take the original airdate record of this row . the first record is less than the second record .