id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4931619,2336277,plaintiff,Wandesford,Thomas,mercer,585869,"Wandesford, Thomas, of London, mercer, on his own account",0 4931620,2336277,defendant,Mason,John,,808421,"Mason, John, of Chydyngstone, Kent, parson",0