-vac a-do aaaa aaac aaad aaae aaav aaca aacc aacd aace aaco aacu aacv aada aadc aade aadu aaea aaec aaev aaoe aaoo aava acaa acac acad acae acca accc accd acce acco accu acda acdc acde ace- acea acec aced acev acoa acod acoe acou acu- acue acuo acvv adaa adac adad adae adao adcc adda addc addd adde addo addu adea adee adeo adoc adod adoe adoo adua adue aeac aede aeva aoca aoce aoeu auaa auca auce audc aude audo auve avao avcc avce avco avda avea avec aveo aveu avou avva avvo c-cd caaa caac cac- caca cacc cace caco cada cadc cadd cade cado cadu caec caeu caod cauc cauo cava cave cavo cavu ccaa ccac ccad ccca cccc cccu cccv ccdc cced ccee ccoc ccod ccuc ccvo cd-e cdaa cdac cdad cdda cdec cdvd ceac cead cec- ceca cece ceco ceda cedd cede cedo cedu ceec ceou ceva cevo coad coca coce coco cocu coda codd code coed cood coua coud coue cova cove covo cuau cuca cucc cuce cuda cude cued cuve cvac cvca cvcc daad daae daau daca dace dada dade dado dadu daeu daou daud daue dava dave dcca dccc dccu dccv dcvd dddd ddoc deac dead deae deau dec- deca decc decd dece deco deda dedd dede dedo dedu deed deev deua deue deva deve devo doae doca doce doco docu dod- doda dodd dode dodo doea dood douc doud doue dove duaa duad duca duce duco duda dudd dude dudo dudu duo- duva duve dvda dvoa eaca eacc eada eadd eaec eave ecaa ecac ecad ecao ecca eccc ecce ecco ecdc eced eco- ecod ecou ecua edac edad edca edda eddc edde eddo ede- edea edoc edod edou educ edve eeca eede eedu eeea eeee eeoc eeva eocd eode eucd eude evac evae evea evoe evoo o-eo oaau oade ocac ocad occa occc oce oced ocee odac odda oddd odea oded odeo odoo odou odva oec- oeca oecc oedo oeec ooaa ooda oooo ouac ouad oucc oudc oude ouea oued ouu- ovda ovde ovee ovo- ovod ovoo uaca uaoc uaua ucad ucav ucca ucdc ucdd ucea ucua udaa udad udau udca udea udev udoo ueda uocc uovo uuoc uuuu uv-a uv-c uvaa uvac uvae uvda uvea uvvu vaad vaca vace vaco vada vade vado vadu vaud vava vdcc vdec veau vecc veda vedc vede vedo veve vevo voad voca voce voda vode vodo voeu vooc voud voue vuca vuco vuda vudu vvvv