id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 5319000,2450774,plaintiff,Halsted,John,abbot of Walden Abbey,,"Halsted, John, abbot of Walden Abbey",0 5319001,2450774,defendant,Serle,John,butcher,654018,"Serle, John, of Elmeden, Essex, butcher",0