c-cor c-p-c c-pop ccccc cfour co-co co-op cocc- cocco cocto cocur cofur coopt coppo copr- copro copto copur coput corfo corfu coro- corop corot corto cott- cotto cottu couco court couru couto coutu cpcfc cpctc croco croft croop croot cropc cropo crott croup crout cruft cruor cuoco cupof cupr- cupro curro curto curup cutco cutcu cutro cutto cutup forro forto forur fotur fouro fprot frcpc froop froot froup fruct fruto ftrtt fu-fu fuco- fuoco furo- furor futop futur occur ocftc octo- octor offof offto ofoto ofour ofpop ooooo opto- optot optto orcop orfor oroco orout ortoo oruro orutu ototo otour otpor ottur ouoro outof outro outto pctct pforp po-po pocop poopo poort popco popop poppo popup porco porcu poro- porro porto portu porur potco potoc potof potoo potop potor potro potto pottu pouff proff proft proof proor proot prop- propp propr propt prot- proto prout prtor ptprc ptprf ptpro ptprr ptprt ptpru puppo puro- putco putor putt- putto puttu putuo putup r-co- ro-ro rocco rocor rocou rofor rooft roto- rotor rotot rotto routt rprop rptor ruffo rufo- ruutu t-pop t-top tocco toco- tocut toffo tofop tofor topcu topo- topof topor topot toppo topto topup torpo torro torto tortu toto- totoo totop totup touro tprot troco troff troft troop trop- tropo trott troup trout truco truff trupt truro ttttt tuctu tuotu tupou turco turoc turot turro turtu turup turut tutor tutto tuuru u-pop ufofu upcot upcut upfor upoff upput uptop urour urucu urutu utro- utrop utror uttur uturu ututo uuuuu