cccc cccp cccu ccnc ccnp ccnr ccnu ccoc ccpn ccpp ccpr ccrc ccrp ccuc ccup cnco cncp cnrc cnrr coco cocp cocu con- conc conn cono coon coop copo copp copr cor- corc corn coro corp corr coun coup cour cpcu crcc crcr croc cron croo crop cror crpc crun crup cucc cucn cuno cunp cuon cupo cupp cupr curn curo curr n-up nccc nccn nccp nccr nccu ncnc ncoc ncor ncpc ncrc ncrp nnnn nnpr noco non- nonn nono nonu noo- noon nooo noop noor nor- norc norn noro norr noun noup nour npcc nppc nroc nron nrpc nrpn nrrc nucu nunc nunn nuno nuoc nuon nurc nurn nurp nurr nuru occc occn ocon ocpp ocro ocrr ocur onc- onco onno onon onor onpu onup onur oocr oooo opo- opon opor oppo orco ornc orno oro- oron oror orpc orro orup oucc oun- our- ourn ouro ouu- pccc pcpn pcpp pcrc pcun pnon pnpo pnpp pnro pnup poco ponc pono ponp poon poop poor pop- popc popo popp porc porn poro porr poun poup pour ppcc pppn pppo pppp pprc ppru ppur prcc prcp prnp pro- proc pron proo prop prou pruu punc puno punu pupu pur- puro purp purr puru puuc rccc rcnr rcon rcpo rnco rncp rocc roco ronc rono roon roop roor ropo rorc roro roru roun roup rpon rppn rrrr rrun runc runn runo rupp rurc ruro rurp ruru ruun u-rp uccp ucon ucrc uncc unco uncp unno unon unop unpc unro uocc uor- upnp upon upor uppc uppp uppu upup uro- uroo urpo urun urup urur uucp uuno uuoc uuuu