-ene bbbb bbch bbdd bbeb bcbc bcbp bccc bcde bcec bchd bche bcnu bcpp bcuc bcup bdbc bddc bddh bdpc bebb bebe bech becu bede bedu beeb beed been beep behn bend bene benn benu bhcc bhuu bnpp bpcp bphc bubb bube bubu bucc buce buch bucu budb budd bude budu buen bueu buhe bunb bund bune bunn bunu bupc c-cd cbbc cbcc cbce cbcn cbcp cbcu cbdb cbdc cbdn cbec cbee cbnd cbpc cbpp ccbc ccbn cccb cccc cccp cccu ccdc ccdh ccdn ccdp cced ccee cche cchp ccnb ccnc ccne ccnp ccnu ccpe ccpn ccpp ccuc ccup cd-e cddb cdec cdnb cdnc cebp cebu cec- cece cecp cedd cede cedu ceeb ceec cen- cend cene cepc cepe ceph cepp chbp chce chch chcp cheb chec ched chee cheh chen chep cheu chnb chnc chpp chub chud chun cnbc cnbp cncp cndd cndp cnep cpbc cpce cpcu cpeb cpep cpnb cppd cub- cubb cube cucc cuce cucn cude cued cund cune cunp cupe cupp dbcc dbcp dbpc dbpd dcbc dccb dccc dccp dccu dcdb dche dcup dddd ddub debe debu dec- decc decd dece dedd dede dedu deeb deed deen deep dehn dehu dene denn denu depc depe depp deue dhbp dhcp dhec dhed dhee dhun dnce dpbc dpcp dphp dppc dpph dub- dubb dubc dube dubh dubu duce duch dudd dude dudu duhe duhu dunc dune dunn dupe ebbc ebcc ebed eben ecbc ecbe eccb eccc ecce ecdc eced eche ecne ecpd ecpp eddc edde eddp ede- edeh eden educ edun edup eede eedu eeee eend ehcc ehdd eheh ehen eheu ehud enb- enbn ence ench end- ende endh endu ened enee ennc enne ennu enp- enue epcc epch epec epee epen eph- eppc eppp epub eubc eucd euch eude hbcd hcbc hccb hccc hcch hcpc hebb hebe hech hedd hede hedp heeb heed heep hehe hehn hend hene henh henn henu hepc hepe hepp hepu heue heun hhhh hhpc hnce hndd hpcc hpdh hppe hpue hubb hube huch hucu hudd hude hudu hued huhn huhu hunc hund hune hunh hupe hupp huub n-up nbbc nbcc nbhd nbpp ncbc nccc nccn nccp nccu ncdc ncdn ncdu ncec nced ncee ncen ncep nchc nchd ncnc ncnd ncpc ncue ndcc ndcp nddb ndde ndnp ndpd nebb nebe nebn nebu necc nece nech nedc nedd nede nedu neeb need neen neep nehe nehu nend nene nenh nenu nepc nepe neph neuc neue neun neuu nhcc nhdp nheb nhnn nndb nnnn npcc nppc nppd nubc nube nuce nuch nucu nudc nudd nude nuee nunc nune nunn nupe pbcc pbed pcbc pccc pcce pcep pchp pcpb pcpn pcpp pcun pdcp pdpn pece pech ped- pede peec peed peen peep pehe pen- penc pend pene penh penn penu pepd pepe peun phcc phe- phen phun pnec pneu pnpp pnup ppcc ppcd ppen pppd pppn pppp pu-e pube pubu puce puch pudu pued pueu puhn punc pund pune punu pupe pupu puuc ubbe ubpc ubud ucbc uccp ucdc ucdd uche ucpb ucph udbc uden udpd udun uend uh-d uhde uhuh uhup unbd unbe uncc unce unch uncp unde uneb unec uned unee unen unne unpc upbe uped upen upne upnp uppc uppe uppp uppu upup uucp uuen uuuu