id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4263639,2117502,plaintiff,ap Jevan,Jevan,,,"ap Jevan, Jevan",0 4263640,2117502,defendant,ap William,David,yeoman,585869,"ap William, David, of London, or of Michelston on Avon, Glamorgan, yeoman",0 4263641,2117502,defendant,ap David,David,yeoman,725903,"ap David, David, of Michelston on Avon, yeoman",1