id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 5105144,2387943,plaintiff,Chywarton,Thomas,,,"Chywarton, Thomas",0 5105145,2387943,defendant,Tregornowe,John,yeoman,645314,"Tregornowe, John, of Pensans, Cornw, yeoman",0