id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq
3951304,2007521,plaintiff,Griffith,Thomas,mercer,585869,"Griffith, Thomas, of London, mercer",0
3951305,2007521,defendant,Vaughan,Roger,,676345,"Vaughan, Roger, of Talgarthe, Brecon, knight",0