a-be a-do aaaa aaab aaac aaad aaae aaar aaba aabb aabc aabd aaca aacb aacc aacd aace aaco aacr aacu aada aadc aade aadu aaea aaec aage aaoe aaoo aara aarc aard aare aaro aaru abaa abab abac abad abae abag abar abau abb- abba abbb abbe abbo abbr abca abcb abcc abcd abcr abda abdo abdu abec abed abee aber abgd aboa abob abod aboo abor abou abra abrc abro abua abud abue abug acaa acab acac acad acae acag acar acba acca accc accd acce acco accu acda acdb acdc acde ace- acea acec aced acer acga acgr acoa acod acoe acog acor acou acr- acra acrc acre acro acrr acu- acue acuo acur adaa adab adac adad adae adag adao adar adba adbc adcc adda addc addd adde addo addr addu adea adeb adee adeo ader adob adoc adod adoe adog adoo ador adra adre adro adua adub adue adur aeac aecb aede aeer aega aer- aera aerc aerd aero ag-o agac agad agag agao agar agau agba agbo agca agcc agce agco agda agde agea aged agee ager agga agge aggu agob agod agog agoo agou agra agre agro agua ague agur aoba aoca aoce aoeu aora aorb arab arac arad arae arag arar arau arba arbe arc- arca arce arco arda ardc arde ardo ardu area arec ared aree areg areo areu arga argb arge argo aroa arob arod aroe aroo aror arr- arra arrc arre arrg arro arrr arru arua arub arud arue arug auaa aube auca auce audc aude audo auer auga auge aur- aura aurd aure auro auug baaa baad baar baba babb babe babo babr babu bac- baca bacc bace baco bada badb badd bade bado badr badu baed baer baga bage bagg bago bar- bara barb barc bard bare barg baro barr baru bau- baud baug baur bbad bbau bbbb bbdd bbdo bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcda bcde bcec bcer bcor bcra bcru bcuc bd-r bdbc bddc bdog bead beag bear beau beba bebb bebe bebo beca becu beda bede bedo bedu beeb beed beeg beer bega begg bego begu beo- beod beor bera berc berd bere berg bero berr beru beur bgca boab boac boad boag boar boba bobb bobe bobo bobu boca boce boco bocu boda bodb bode bodo bodu boea boec boee boeo boer boga bogd boge bogg bogo boob booc bood booe boog boor bor- bora bord bore borg boro borr boru boua boud boue bour brab brac brad brae brag brao brau brca brcb brce brda brdo brea breb brec bred bree breg breo brer broa brob broc brod broe brog broo bror brou brrr bruc brud brue brug buad buar buba bubb bube bubo bubu buca bucc buce buco bucu buda budb budd bude budg budo budu buea buer bueu buga buge bugg bugo bur- bura burb burd bure burg buro burr buru c-bo c-cd caaa caab caac caba cabe cabg cabo cabu cac- caca cacc cace caco cacr cada cadc cadd cade cado cadr cadu caec caer caeu caga cage cagg cago cagr caod caor cara carb carc card care caro carr cauc cauo cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbdb cbdc cbdo cbea cbec cbee cber cbga cbgb cbrd cbre ccaa ccab ccac ccad ccag ccar ccba ccbc ccca cccb cccc cccu ccdc ccdr cced ccee ccga ccgc ccob ccoc ccod ccra ccrc ccre ccrg ccuc cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdre ceac cead cear ceba cebu cec- ceca cece ceco ceda cedd cede cedo cedu ceeb ceec cege cego ceor ceou cer- cera cerc cerd cere cero cgac cgcc cgcg cged cger cgro coad coag coba cobb cobe cobo cobu coca coce coco cocu coda codd code coed cogo coob cood cor- cora corb corc cord core corg coro corr coua coub coud coue cour crab crac crag crar crau crbc crbu crca crcc crce crcr crda crdc cre- crea creb crec cred cree creg creo creu crob croc crod croe croo cror crub crud crue crug cuau cub- cuba cubb cube cuca cucc cuce cuda cude cued cuer cuga cura curb curd cure curo curr d-bo daab daad daae daag daar daau daba dabb dabo dabu daca dace dada dade dado dadu daeb daer daeu daga dage dagg dago dagr dagu daou dara darb darc dard dare darg daro darr daru daub daud daue daur dbag dbar dbcc dcbc dcca dccb dccc dccu dcdb dcgo dcra dddd ddoc ddrc ddre ddub deac dead deae dear deau deba debe debu dec- deca decc decd dece deco deda dedd dede dedo dedu deeb deed deeg deer dega dege dego degu deor der- dera derb derc dere derg dero derr deua deue deur dgac dgca dgeg dgge doab doae doar doba dobb dobe dobu doca doce doco docu dod- doda dodd dode dodg dodo doea doeg doer dog- doga doge dogg dogo dogu doob dood door dora dorc dord dore doro dorr doru doub douc doud doue doug dour draa drab drac drad drag drar drau drba drbc drca drda drea dred dree dreg drge drob drod drog drou drra drua drub drue drug druu duaa duab duad duar dub- duba dubb dubc dube dubu duca duce duco duda dudd dude dudo dudu duer duga dugu duo- dura dure durg duro duru duur eaba eaca eacc eada eadb eadd eaec eaga eage eara earb eard eare earo ebac ebba ebbc ebbo ebbr ebcc ebed eber eboe eboo ebor ebro ebru ebur ecaa ecac ecad ecao ecar ecbc ecbe ecca eccb eccc ecce ecco ecdc eced eco- ecod ecog ecou ecra ecrc ecrr ecru ecua edac edad edag edar edca edda eddc edde eddo ede- edea eder edge edoc edod edou edra edru educ edur eeca eede eedu eeea eeee eega eeoc eera eerc eerg eero egaa egad egae egao egar egba egbe egbu egcc egcg egcr egea egec egee eger eggb egge eggo ego- egor egra egre eocd eode