id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 3917369,1996168,plaintiff,Grey,Edward,"knight, Lord Powes",,"Grey, Edward, knight, Lord Powes",0 3917370,1996168,defendant,ap Maddoke,David Vaughan ap David,yeoman,651331,"ap Maddoke, David Vaughan ap David, of Pola, Montgomery, yeoman",0 3917371,1996168,defendant,ap Richard,Robert,sherman,651332,"ap Richard, Robert, of Pola, sherman",1 3917372,1996168,defendant,Gor,Humphrey ap Gytten ap David,yeoman,651332,"Gor, Humphrey ap Gytten ap David, of Pola, yeoman",2