cccc cccf cccp ccee ccfc ccff cche cchp ccoc ccpe ccpp cec- cece ceco cecp ceec cef- cefc ceop cepc cepe ceph cepo cepp cfcf cfco cfpo chce chch chcp chec chee chef cheh chep chfc choc choh choo chop chpf chpp coce coch coco cocp coep cofc cofe coff coho coof cooh coop cope coph copo copp cpce cpep cpff eccc ecce ecco ecef ecfc eche echo eco- ecop ecpp eeee eefe eeoc efco efeo ehcc eheh epcc epch epec epee epfc eph- epoc eppc eppo eppp fccf fcch fccp fece fech fefc fefe feff fefo feof feoh fepc ffcc ffee ffff foce foch foco fofo foof fopp fp-c fpcc hccc hcch hcfc hcpc hech heef heep hefe hehe heho hepc hepe hepp hfce hhhh hhof hhpc hoce hoch hofe hoff hohe hoho hooe hoof hoop hope hopf hopo hopp hpcc hpfc hppe o-eo occc oce ocee ocef ocfp oche ocpp oec- oecc oeec off- offc offe offh offo ohcc ohee ohho ohoh ooff ooho oooh oooo opec opep opo- oppo pccc pcce pcep pcfc pchp pcoe pcpp pece pech peco peec peep pefc peff pehe peho pepe pepo pfce pfff phcc phe- phoh phoo poce poch poco poff poof pooh poop pop- popc pope popo popp ppcc pppo pppp