id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 3713466,1930524,plaintiff,Aleyn,John,alderman,585869,"Aleyn, John, of London, alderman",0 3713467,1930524,defendant,Grave,John,yeoman,606018,"Grave, John, of Preston, Yorks, yeoman",0 3713468,1930524,defendant,White,John,yeoman,616250,"White, John, of Est Ernewike, Yorks, yeoman",1