less { hop { filter_eq { all_rows ; partnering ; simon stadler } ; date } ; hop { filter_eq { all_rows ; partnering ; paolo lorenzi } ; date } } = true
select the rows whose partnering record fuzzily matches to simon stadler . take the date record of this row . select the rows whose partnering record fuzzily matches to paolo lorenzi . take the date record of this row . the first record is less than the second record .