id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4722729,2272426,plaintiff,Costyn,John,,585869,"Costyn, John, of London, girdle maker",0 4722730,2272426,defendant,Rook,William,mercer,591316,"Rook, William, of Salle, Norf, mercer",0