id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 3912638,1994561,plaintiff,ap Rychard,William,,,"ap Rychard, William",0 3912639,1994561,defendant,ap Gwatkyn,William,yeoman,650535,"ap Gwatkyn, William, of Llanvyhangell Kylcornell, yeoman",0 3912640,1994561,defendant,Barry,Roger,yeoman,650535,"Barry, Roger, of Llanvyhangell Kylcornell, yeoman",1