less { hop { filter_eq { all_rows ; outgoing manager ; karol marko } ; date of vacancy } ; hop { filter_eq { all_rows ; outgoing manager ; ivan vrabec } ; date of vacancy } } = true
select the rows whose outgoing manager record fuzzily matches to karol marko . take the date of vacancy record of this row . select the rows whose outgoing manager record fuzzily matches to ivan vrabec . take the date of vacancy record of this row . the first record is less than the second record .