id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4214046,2100433,plaintiff,ap John,Thomas ap John,,,"ap John, Thomas ap John",0 4214047,2100433,defendant,Watkyn,Richard,yeoman,600182,"Watkyn, Richard, of Dorston, or of Bach, yeoman",0 4214048,2100433,defendant,Harper,John,yeoman,716286,"Harper, John, of Newton, Clifford, yeoman",1