segmentation: idm final
rank.candidate: i dm final idm final i dmfin al i dmf in al id mfinal id m final idmfina l idm fina l idmfi nal id mfin al i dmfinal idmfi na l idmf in al idm fin al idmfin al i dmfi nal idm fi nal id mf in al idmf inal idmfinal