id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4223742,2103789,plaintiff,ap John,Thomas John,,,"ap John, Thomas John",0 4223743,2103789,defendant,Watkyn,Richard,yeoman,600182,"Watkyn, Richard, of Dorston, or of Bache, yeoman",0 4223744,2103789,defendant,Harper,John,yeoman,718254,"Harper, John, of Newton, Clyfford, yeoman",1