id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 3866563,1979044,plaintiff,Preston,John,,,"Preston, John",0 3866564,1979044,plaintiff,Malore,Richard,mercer,585869,"Malore, Richard, of London, mercer",1 3866565,1979044,defendant,Smyth,Thomas,,588332,"Smyth, Thomas, of Westchester, Cheshire, chapman, son of Smyth, Thomas",0 3866566,1979044,defendant,Prowte,William,chapman,586958,"Prowte, William, of Gloucester, chapman",1 3866567,1979044,defendant,ap Owen,Hugh,,620882,"ap Owen, Hugh, of Glouocester",2 3866568,1979044,defendant,Aburforthe,Thomas,mercer,585869,"Aburforthe, Thomas, of London, mercer",3