cccc cccp cchp cchr cchy ccoc ccpp ccpr ccrc ccrp chch chcp choc choh choo chop chor choy chpp chpr chrc chro chrp chrr chy- chyc coch coco cocp coho cooh coop coph copo copp copr copy cor- corc coro corp corr cory coyo coyr crcc crcr croc croh croo crop cror croy crpc cry- cryo cyc- cycc cypc cyy- cyyc hccc hcch hcpc hcrp hhhh hhpc hoch hocr hoho hoop hoor hopo hopp hopy horc horo horr hory hpcc hrpc hrpp hrrc hyo- hyp- hyph hypo hypy occc ocpp ocro ocrr ohcc ohho ohoh ohyo oocr ooho oooh oooo oory opo- opor oppo oppy opry orch orco oro- oror oroy orpc orph orro orry oych pccc pchp pcpp pcrc phcc phoh phoo phrr poch poco pooh poop poor pop- popc popo popp popy porc poro porr pory poyo poyr ppcc pppo pppp pprc prcc prcp pro- proc proo prop pych pyo- pypy pyr- pyro pyry rccc rcpo rcyc rhcp rhoc rhoh rocc roch roco rohr rohy roop roor ropo ropy rorc roro rory rpho rpyc rrrr rych ryoh yccc ycch yoch yoho yoop yopo yopy yoro yory yoyo ypcc yrho yyyy