id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 3874976,1981854,plaintiff,Dormer,John,mercer,,"Dormer, John, mercer",0 3874977,1981854,defendant,Byllyngforthe,Christopher,mercer,585936,"Byllyngforthe, Christopher, of Norwich, mercer",0 3874978,1981854,defendant,Potnall,William,chapman,610680,"Potnall, William, of Isle of Wight, chapman",1 3874979,1981854,defendant,Ferrer,Robert,chapman,588150,"Ferrer, Robert, of Halyfax, Yorks, chapman",2