-hou c-cd cccc cccp cccu ccdc ccdh ccdp cced ccee cche cchp ccoc ccod ccpe ccpp ccuc ccup cd-e cdec cec- cece ceco cecp cedd cede cedo cedu ceec ceop ceou cepc cepe ceph cepo cepp chce chch chcp chec ched chee cheh chep cheu choc chod choh choo chop chou chpp chud coce coch coco cocp cocu codd code coed coep coho cood cooh coop copd cope coph copo copp coud coue coup cpce cpcu cpep cppd cucc cuce cude cued cupe cupo cupp dccc dccp dccu dche dcop dcpo dcup dddd ddoc ddpo dec- decc decd dece deco dedd dede dedo dedu deed deep dehu deop depc depe depo depp deue dhcp dhec dhed dhee dhod doce doch doco docu dod- dodd dode dodo dohc dood doop dope dopo dopp douc doud doue doup dpcp dphp dppc dpph duce duch duco dudd dude dudo dudu duhe duhu duo- dupe dupo eccc ecce ecco ecdc eced eche echo eco- ecod ecop ecou ecpd ecpp eddc edde eddo eddp ede- edeh edoc edod edou educ edup eede eedu eeee eeoc ehcc ehdd eheh eheu ehud eocd eode epcc epch epec epee eph- epoc epod eppc eppo eppp eucd euch eude hccc hcch hcpc hdoc hdod hech hedd hede hedo hedp heed heep hehe heho heou hepc hepe hepp hepu heue hhhh hhpc hoce hoch hode hodh hoed hohe hoho hood hooe hoop hope hopo hopp houd houe houp hpcc hpdh hppe hpue huch hucu hudd hude hudo hudu hued huhu hupe hupp o-eo occc oce oced ocee oche ocpd ocpp oddd oded odeo odoh odoo odop odou oec- oecc oedo oeec ohcc ohed ohee ohho ohoh ooho oooh oooo opec oped opep opo- oppo oucc ouch oudc oude oudh oued oupe ouph ouu- pccc pcce pcep pchp pcod pcoe pcpp pdcp pdoc pece pech peco ped- pede pedo peec peed peep pehe peho peou pepd pepe pepo phcc phe- phoh phoo pocd poce poch poco pod- podd pode podo podu poed pood pooh poop pop- popc pope popo popp poud poup ppcc ppcd ppod pppd pppo pppp pu-e puce puch pudo pudu pued pueo pueu pupe pupu puuc uccp ucdc ucdd uche ucho ucph udoh udoo udop udpd uh-d uhde uhoh uhuh uhup uocc updo uped uppc uppe uppp uppu upup uucp uuoc uuuu