id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 5141002,2398490,plaintiff,Tregarthyn,Thomas,,,"Tregarthyn, Thomas",0 5141003,2398490,defendant,Kearter,Richard,husbandman,809329,"Kearter, Richard, of St Vuell, husbandman",0 5141004,2398490,defendant,Kearter,Martin,husbandman,809329,"Kearter, Martin, of St Vuell, husbandman",1 5141005,2398490,defendant,Tyrell,Richard,yeoman,588695,"Tyrell, Richard, of St Pynnok, yeoman",2