segmentation: teched 09
rank.candidate: teche d 09 tech e d0 9 tech e d09 tec hed09 tec he d 09 tec hed 09 te ched0 9 te ched 09 te ched09 teched09 tech ed09 te che d 09 teched0 9 t ec hed 09 teched 09 tech ed 09 t eched09 tech ed0 9 t ech ed 09 te ch ed 09