id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 5277257,2438427,plaintiff,Aleyn,Thomas,,,"Aleyn, Thomas",0 5277258,2438427,defendant,Chete,Thomas,gent,591124,"Chete, Thomas, of Foxley, gent",0 5277259,2438427,defendant,None,Robert,yeoman,867720,"None, Robert, of Blacolnesle, yeoman",1