cccc cccp cchp cchr ccoc ccpp ccpr ccrc ccrp chch chcp choc choh chok choo chop chor chpp chpr chrc chro chrp chrr ckch ckck ckco ckoc ckoo ckor ckpc ckpr ckrc coch cock coco cocp coho cok- coko cooh cook coop coph copo copp copr cor- corc cork coro corp corr crcc crcr crkc crkp croc croh crok croo crop cror crpc hccc hcch hcpc hcrp hhhh hhpc hkcc hkpo hoch hock hocr hoho hoko hook hoop hoor hopo hopp horc hork horo horr hpcc hrpc hrpp hrrc kccc kcck kccr kchh kchk kcho kchr kckc kckk kcko kckr kcoh kcor kcpc kcpo kcpr kcrc kcrh kcro kcrp kcrr khcc khch khck khhk khho khkk khkr khoc khok khop khor khpr khrk khro khrr kkch kkck kkco kkcr kkhh kkhk kkhr kkkk kkoh kkoo kkor kkpc kkpk kkrc kkrh kkrk kkro kkrr koch kock kocp kohh koho kohr kokc kokh kokk koko kokp kokr kooc kook kooo koop koor koph kopp kopr korc kork koro korr kpcc kpch kpcr kphp kphr kpkk kpkr kpoc kpok kpoo kpop kppc kppk kppo kppp kppr kprc kprh kprk kpro kprp kprr krcc krch krco krhc krhp krkc krkh krkk krko krkr kroc kroh krok kroo krop kror krph krpr krrc krrk krro krrr occc ocpp ocro ocrr ohcc ohho ohoh ohok okko okok okor okpo okro oocr ooho oooh oooo opo- opor oppo orch orco orko oro- orok oror orpc orph orro pccc pchp pcpp pcrc phcc phoh phoo phrr poch pock poco poko pooh pook poop poor pop- popc popo popp porc pork poro porr ppcc pppo pppp pprc prcc prcp pro- proc proo prop rccc rcpo rhcp rhoc rhoh rocc roch rock roco rohr rokh rokk roko rokr rook roop roor ropo rorc rork roro rpho rrrr