id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4612212,2234884,plaintiff,Cornewaill,John,knight,,"Cornewaill, John, knight",0 4612213,2234884,defendant,(not given),John,mayor of Leylond,596395,"Leylond, John, of Lostwithiell, mayor of the town",0 4612214,2234884,defendant,Dey,John,,774451,"Dey, John, of Lostwithiell, priest",1