id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4471107,2191625,plaintiff,Calton,William,,,"Calton, William",0 4471108,2191625,defendant,Byron,John,,,"Byron, John",0 4471109,2191625,defendant,le Wolf,Richard,,760544,"le Wolf, Richard, of Lanton",1 4471110,2191625,defendant,Roule,Thomas,son of William de Roule,,"Roule, Thomas, son of William de Roule",2