cccc cccp ccnc ccnp ccnr ccny ccoc ccpn ccpp ccpr ccrc ccrp cnco cncp cnrc cnrr coco cocp con- conc conn cono cony coon coop copo copp copr copy cor- corc corn coro corp corr cory coyn coyo coyr crcc crcr croc cron croo crop cror croy crpc cry- cryn cryo cyc- cycc cyn- cyno cyon cypc cyy- cyyc cyyn nccc nccn nccp nccr ncnc ncoc ncor ncpc ncrc ncrp nnnn nnpr noco non- nonn nono noo- noon nooo noop noor nor- norc norn noro norr nory noyo npcc nppc nroc nron nrpc nrpn nrrc nycc nyco nycy nyny nyon nypc nyro occc occn ocon ocpp ocro ocrr onc- onco onno onon onor onoy oocr oooo oory opo- opon opor oppo oppy opry orco ornc orno orny oro- oron oror oroy orpc orro orry oyon pccc pcpn pcpp pcrc pnon pnpo pnpp pnro poco ponc pono ponp pony poon poop poor pop- popc popo popp popy porc porn poro porr pory poyn poyo poyr ppcc pppn pppo pppp pprc prcc prcp prnp pro- proc pron proo prop pyn- pyo- pyon pypy pyr- pyro pyry rccc rcnr rcon rcpo rcyc rnco rncp rocc roco ronc rono rony roon roop roor ropo ropy rorc roro rory royn rpon rppn rpyc rrrr rynn ryon yccc ynon yono yoon yoop yopo yopy yorn yoro yory yoyn yoyo ypcc yron yryn yyyy