cccc cccp ccee cche cchp cchr cchy ccpe ccpp ccpr ccrc ccre ccrp cec- cece cecp ceec cepc cepe ceph cepp cepr cer- cerc cere cerp cery chce chch chcp chec chee cheh chep cher chey chpp chpr chrc chrp chrr chy- chyc cpce cpep cper cpre crcc crce crcr cre- crec cree creh crep crpc cry- cyc- cycc cypc cyre cyy- cyyc eccc ecce eche ecpp ecrc ecrr eeee eerc eery ehcc eheh eher ehre epcc epch epec epee eper eph- eppc eppp eppy eprp ercc erce erch ercp erec erer erhc erpe errc erre eryc erye eyec eyer eyey eype eyre eyry eyyr hccc hcch hcpc hcrp hech heep heer hehe hepc hepe hepp herc here herp herr hery heye heyh heyr hhhh hhpc hpcc hppe hree hrpc hrpp hrrc hyce hyer hyhe hyp- hype hyph hypy hyre pccc pcce pcep pcer pchp pcpp pcrc pcre pece pech pecr pecy peec peep peer pehe pehr pepe per- perc pere perh perp perr pery peyr phcc phe- phey phrr ppcc pper pppp pprc ppye prcc prcp pre- prec pree prep prey pyce pych pyep pype pypy pyr- pyre pyry rccc rcep rcyc recc rece rech recp recr recy reep rehe repe repp repr repy rere rery reye rhce rhcp rhee rhye rpyc rrrr rych ryeh rype yccc ycch ycee yche yech yeep yeer yehe yehr yepe yepp yere yerr yery yeye yeyr yher ypcc yyyy