a-be a-do a-wa aaaa aaab aaac aaad aaae aaar aaba aabb aabc aabd aabw aaca aacb aacc aacd aace aaco aacr aada aadc aade aaea aaec aaoe aaoo aaow aara aarc aard aare aaro aaww abaa abab abac abad abae abar abaw abb- abba abbb abbe abbo abbr abca abcb abcc abcd abcr abcw abda abdo abec abed abee aber aboa abob abod aboo abor abow abra abrc abro abwa abwe abwr acaa acab acac acad acae acar acba acca accc accd acce acco acda acdb acdc acde ace- acea acec aced acer acoa acod acoe acor acow acr- acra acrc acre acro acrr acwa acww adaa adab adac adad adae adao adar adaw adba adbc adcc adda addc addd adde addo addr adea adeb adee adeo ader adew adob adoc adod adoe adoo ador adra adre adro adwa aeac aecb aede aeer aer- aera aerc aerd aero aoba aoca aoce aora aorb aowd arab arac arad arae arar araw arba arbe arc- arca arce arco arda ardc arde ardo area arec ared aree areo arew aroa arob arod aroe aroo aror arow arr- arra arrc arre arro arrr arwa arwe awac awad awae awar awbe awe- aweb awed awee awer awoo awow awre awro awwa 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 baw- bawd bawe bbad bbbb bbdd bbdo bbeb bbrc bbwc bbwr bcaa bcar bcbc bcca bccc bcda bcde bcec bcer bcor bcra bd-r bdbc bddc bead bear beaw beba bebb bebe bebo beca beda bede bedo beeb beed beer beo- beod beor bera berc berd bere bero berr bewa bewe boab boac boad boar boba bobb bobe bobo bobw boca boce boco boda bodb bode bodo boea boec boee boeo boer boob booc bood booe boor boow bor- bora bord bore boro borr borw bowa bowd bowe bowr brab brac brad brae brao braw brca brcb brce brcw brda brdo brea breb brec bred bree breo brer brew broa brob broc brod broe broo bror brow brrr brwe bwaa bwoc c-bo c-cd caaa caab caac caba cabe cabo cac- caca cacc cace caco cacr cacw cada cadc cadd cade cado cadr cadw caec caer caod caor cara carb carc card care caro carr cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbdo cbea cbec cbee cber cbrd cbre cbwa cbwd ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc ccdc ccdr cced ccee ccob ccoc ccod ccow ccra ccrc ccre cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdre ceac cead cear ceba cec- ceca cece ceco ceda cedd cede cedo ceeb ceec ceor cer- cera cerc cerd cere cero cewa cewe coad coba cobb cobe cobo coca coce coco coda codd code coed coob cood cor- cora corb corc cord core coro corr cowd cowe crab crac crar craw crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creo crew crob croc crod croe croo cror crow crwd cwac cweb cwer cwrw d-bo daab daad daae daar daba dabb dabo daca dace dada dade dado daeb daer dara darb darc dard dare daro darr dawa dawd dawe dawo dawr dbar dbcc dcbc dcca dccb dccc dcdb dcra dddd ddoc ddrc ddre deac dead deae dear deaw deba debe dec- deca decc decd dece deco deda dedd dede dedo deeb deed deer deor der- dera derb derc dere dero derr dewa dewe 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 dowa dowb dowd dowe dowr draa drab drac drad drar draw drba drbc drca drda drea dred dree drew drob drod drow drra dwac dwad dwar dwbe dwbr dwcw dwdd dwec dwer dwor dwrd dwrw dwwe dwww eaba eaca eacc eada eadb eadd eaec eara earb eard eare earo earw ebac ebba ebbc ebbo ebbr ebbw ebcc ebed eber eboe eboo ebor ebow ebro ecaa ecac ecad ecao ecar ecbc ecbe ecca eccb eccc ecce ecco ecdc eced eco- ecod ecra ecrc ecrr ecwa edac edad edar edaw edca edda eddc edde eddo ede- edea eder edoc edod edra eeca eede eeea eeee eeoc eera eerc eero eocd eode eora eore erad erba erbb erbe erca ercc erce erda erde ereb erec ered erer erew erob eroc erod eroe eroo erra errc erre erro ewer ewew ewre 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 oec- oeca oecc oedo oeec oera oere ooaa ooba oobe oocr ooda ooer oooo oora oord oore orab orac orad orae orao orar orba orbb orbe orbo orca orce orco orda orde ordo ore- orea oreb orec ored oreo orer oro- oroe oror orra orro orwa orwe orwo owar owda owea owed ower owoe owow owre owwa raab raad raba rabb rabe rabo rac- raca racc race raco rada radc radd rade rado radr raec raed raer raob raoc rara rarb rare raro rawa rawe rawr raww rbbb rbbr rcac rcbc rcbo rccb rccc rcdc rcde rcrd rdac rder rdoc rea- reac read reae reao rear reba rebb rebe rebo reca recc recd rece recr reda redc redd rede redo redr reeb reed reod rera rerd rere rero rewa rewe roab road roar rob- roba robb robe robo roca rocc roce roco roda rodd rode rodo rodw roea roed roer roob rood roor rora rorc rore roro rowa rowb rowd rowe rowr roww rrad rred rrrr waaa waac waad waao waar waaw waba wabb wabc wabd wabe wabo wabr wabw waca wacb wacc wacd wace waco wada wadb wadc wadd wade wado wadr waeb waec waed waee waer waew waob waoc waoe waoo waor waow war- wara warb warc ward ware