id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4222180,2103249,plaintiff,Thomas,John ap John,,,"Thomas, John ap John",0 4222181,2103249,defendant,Williams,Walter,gent,717937,"Williams, Walter, of Lanvertherin, gent",0 4222182,2103249,defendant,William,Richard,yeoman,646701,"William, Richard, of Llanvapley, yeoman",1