cccc ccnc ccoc ccow chch chnc chno choc choh chon choo chow chwo cnco cnoh coch coco cohn coho con- conc conn cono cooh coon cowh hccc hcch hhhh hoch hocn hohn hoho hono hoon howh nccc nccn nchc ncnc ncoc ncow ncwc nhcc nhnn nhon nnnn noch noco nohn noho non- nonn nono nonw noo- noon nooo nown occc occn ocon ohcc ohho ohno ohoh ohow onc- onco onno onon ooho oooh oooo owch owoh owow wccc wcch wccn wcco wccw wchc wchn wcho wcnc wcnh wcnn wcno wcnw wcoc wcoh wcon wcoo wcwc wcwn whcc whcn whco whhh whhn whho whhw whnc whnn whno whon whoo whow whwc whwh whwn wncc wnch wncn wnco wncw wnhc wnhw wnnc wnnh wnnw wnoc wnoh wnoo wnow wnwc wnwn wnww wocc woch wocn woco wohc wonc wonn wonw wooc woon woow wowc wown wowo woww wwch wwcn wwco wwcw wwhn wwho wwnc wwnh wwnn wwno wwnw wwon wwow wwwc wwwh wwwn wwww