-vac a-be a-do aaaa aaab aaac aaad aaae aaar aaav aaba aabb aabc aabd aaca aacb aacc aacd aace aaco aacr aacv aada aadc aade aaea aaec aaev aaoe aaoo aara aarc aard aare aaro aava abaa abab abac abad abae abar abb- abba abbb abbe abbo abbr abca abcb abcc abcd abcr abda abdo abec abed abee aber aboa abob abod aboo abor abov abra abrc abro abva abvd acaa acab acac acad acae acar acba acca accc accd acce acco acda acdb acdc acde ace- acea acec aced acer acev acoa acod acoe acor acr- acra acrc acre acro acrr acrv acvv adaa adab adac adad adae adao adar adba adbc adcc adda addc addd adde addo addr adea adeb adee adeo ader adob adoc adod adoe adoo ador adra adre adro advb aeac aecb aede aeer aer- aera aerc aerd aero aeva aoba aoca aoce aora aorb arab arac arad arae arar arba arbe arc- arca arce arco arda ardc arde ardo area arec ared aree areo arev aroa arob arod aroe aroo aror arr- arra arrc arre arro arrr arva arve arvo avab avao avar avcc avce avco avda avea avec aveo aver avor avra avre avro avva avvo baaa baad baar baba babb babe babo babr bac- baca bacc bace baco bada badb badd bade bado badr baed baer bar- bara barb barc bard bare baro barr bava bave bbad bbbb bbdd bbdo bbeb bbrc bcaa bcar bcbc bcca bccc bcda bcde bcec bcer bcor bcra bcvo bd-r bdav bdbc bddc bead bear beav beba bebb bebe bebo beca beda bede bedo beeb beed beer beo- beod beor bera berc berd bere bero berr bevo boab boac boad boar boba bobb bobe bobo boca boce boco boda bodb bode bodo boea boec boee boeo boer boob booc bood booe boor bor- bora bord bore boro borr bova bove bovo brab brac brad brae brao brav brca brcb brce brda brdo brea breb brec bred bree breo brer brev broa brob broc brod broe broo bror brrr c-bo c-cd caaa caab caac caba cabe cabo cac- caca cacc cace caco cacr cada cadc cadd cade cado cadr caec caer caod caor cara carb carc card care caro carr cava cave cavo cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbdo cbea cbec cbee cber cbrd cbre cbva cbvb cbve cbvr ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccv ccdc ccdr cced ccee ccob ccoc ccod ccra ccrc ccre ccvo cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdre cdvd ceac cead cear ceba cec- ceca cece ceco ceda cedd cede cedo ceeb ceec ceor cer- cera cerc cerd cere cero ceva cevo coad coba cobb cobe cobo coca coce coco coda codd code coed coob cood cor- cora corb corc cord core coro corr cova cove covo crab crac crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creo crob croc crod croe croo cror cvac cvar cvca cvcc cver cvra cvrd cvrr d-bo daab daad daae daar daba dabb dabo daca dace dada dade dado daeb daer dara darb darc dard dare daro darr dava dave dbar dbcc dcbc dcca dccb dccc dccv dcdb dcra dcvd dddd ddoc ddrc ddre deac dead deae dear deba debe dec- deca decc decd dece deco deda dedd dede dedo deeb deed deer deev deor der- dera derb derc dere dero derr derv deva deve devo doab doae doar doba dobb dobe doca doce doco dod- doda dodd dode dodo doea doer doob dood door dora dorc dord dore doro dorr dove draa drab drac drad drar drba drbc drca drda drea dred dree drev drob drod drra dvar dvda dvdr dvoa dvor dvra eaba eaca eacc eada eadb eadd eaec eara earb eard eare earo eave ebac ebba ebbc ebbo ebbr ebcc ebed eber eboe eboo ebor ebro ecaa ecac ecad ecao ecar ecbc ecbe ecca eccb eccc ecce ecco ecdc eced eco- ecod ecra ecrc ecrr ecrv edac edad edar edca edda eddc edde eddo ede- edea eder edoc edod edra edve eeca eede eeea eeee eeoc eera eerc eero eeva eocd eode eora eore erad erba erbb erbe erca ercc erce erda erde ereb erec ered erer erev erob eroc erod eroe eroo erra errc erre erro erve evac evae evar evdb evea ever evoe evoo evra evre o-eo oade oaer oara oare obad obba obbo obea obec obed ober oboe obor obra obre obro ocab ocac ocad ocbc occa occc oce oced ocee ocra ocre ocro ocrr odac odbo odda oddd odea oded odeo oder odoo odor odra odva oec- oeca oecc oedo oeec oera oere ooaa ooba oobe oocr ooda ooer oooo oora oord oore orab orac orad orae orao orar orav orba orbb orbe orbo orca orce orco orda orde ordo ore- orea oreb orec ored oreo orer oro- oroe oror orra orro orve orvr ovar ovda ovde ovee over ovo- ovod ovoo ovra ovre raab raad raba rabb rabe rabo rac- raca racc race raco racv rada radc radd rade rado radr raec raed raer raob raoc rara rarb rare raro rava rave rbbb rbbr rcac rcbc rcbo rccb rccc rcdc rcde rcrd rcvr rdac rder rdev rdoc rea- reac read reae reao rear reba rebb rebe rebo reca recc recd rece recr reda redc redd rede redo redr reeb reed reev reod rera rerd rere rero reva revd reve revo roab road roar rob- roba robb robe robo roca rocc roce roco roda rodd rode rodo roea roed roer roev roob rood roor rora rorc rore roro rova rove rovo rrad rred rrrr rv-c rvca rved rver vaad vaar vaca vace vaco vada vade vado vara vard vare varr vava vbcc vdcc vdec vder vdre vear veba vecc veda vedc vede vedo veer veor ver- vera verb verd vere vero veve vevo voad voar voca voce voda vode vodo voer vooc voor vor- vora vord vore voro vrac vrav