-hou bbbb bbch bbdd bbdo bbeb bcbc bccc bcde bcec bchd bche bcuc bdbc bddc bddh bebb bebe bebo bech becu bede bedo bedu beeb beed beo- beod bhcc bhuu bobb bobe bobo bobu boce boch boco bocu bodb bode bodh bodo bodu boec boee boeo bohd boho bohu boob booc bood booe booh boud boue bouh bubb bube bubo bubu bucc buce buch buco bucu budb budd bude budo budu bueu buhe buho c-bo c-cd cbbc cbcc cbce cbcu cbdb cbdc cbdo cbec cbee ccbc cccb cccc cccu ccdc ccdh cced ccee cche ccob ccoc ccod ccuc cd-e cddb cdec cebu cec- cece ceco cedd cede cedo cedu ceeb ceec ceou chce chch cheb chec ched chee cheh cheu choc chod choh choo chou chub chud cobb cobe cobh cobo cobu coce coch coco cocu codd code coed coho coob cood cooh coub coud coue cub- cubb cube cucc cuce cude cued d-bo dbcc dcbc dccb dccc dccu dcdb dche dddd ddoc ddub debe debu dec- decc decd dece deco dedd dede dedo dedu deeb deed dehu deue dhec dhed dhee dhod dobb dobe dobu doce doch doco docu dod- dodd dode dodo dohc doob dood doub douc doud doue dub- dubb dubc dube dubh dubu duce duch duco dudd dude dudo dudu duhe duhu duo- ebbc ebbo ebcc ebed eboe eboo ecbc ecbe eccb eccc ecce ecco ecdc eced eche echo eco- ecod ecou eddc edde eddo ede- edeh edoc edod edou educ eede eedu eeee eeoc ehcc ehdd eheh eheu ehud eocd eode eubc eucd euch eude hbcd hboc hcbc hccb hccc hcch hdoc hdod hebb hebe hebo hech hedd hede hedo heeb heed hehe heho heou heue hhhh hobe hobo hoce hoch hode hodh hoed hohe hoho hood hooe houd houe hubb hube hubo huch hucu hudd hude hudo hudu hued huhu huub o-eo obbo obec obed oboe obuh ocbc occc oce oced ocee oche odbo oddd oded odeo odoh odoo odou oec- oecc oedo oeec ohbe ohcc ohed ohee ohho ohob ohoh oobe ooho oooh oooo oucc ouch oudc oude oudh oued ouu- ubbe ubbo uboc ubod ubud ucbc ucdc ucdd uche ucho udbc udoh udoo uh-d uhde uhoh uhuh uocc uuoc uuuu