a-be a-do aaaa aaab aaac aaad aaae aaar aaba aabb aabc aabd aaca aacb aacc aacd aace aaco aacr aada aadc aade aaea aaec aage aaoe aaoo aara aarc aard aare aaro abaa abab abac abad abae abag abar abb- abba abbb abbe abbo abbr abca abcb abcc abcd abcr abda abdo abec abed abee aber abgd aboa abob abod aboo abor abra abrc abro acaa acab acac acad acae acag acar acba acca accc accd acce acco acda acdb acdc acde ace- acea acec aced acer acga acgr acoa acod acoe acog acor acr- acra acrc acre acro acrr adaa adab adac adad adae adag adao adar adba adbc adcc adda addc addd adde addo addr adea adeb adee adeo ader adob adoc adod adoe adog adoo ador adra adre adro aeac aecb aede aeer aega aer- aera aerc aerd aero ag-o agac agad agag agao agar agba agbo agca agcc agce agco agda agde agea aged agee ager agga agge agob agod agog agoo agra agre agro aoba aoca aoce aora aorb arab arac arad arae arag arar arba arbe arc- arca arce arco arda ardc arde ardo area arec ared aree areg areo arga argb arge argo aroa arob arod aroe aroo aror arr- arra arrc arre arrg arro arrr baaa baad baar baba babb babe babo babr bac- baca bacc bace baco bada badb badd bade bado badr baed baer baga bage bagg bago bar- bara barb barc bard bare barg baro barr bbad bbbb bbdd bbdo bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcda bcde bcec bcer bcor bcra bd-r bdbc bddc bdog bead beag bear beba bebb bebe bebo beca beda bede bedo beeb beed beeg beer bega begg bego beo- beod beor bera berc berd bere berg bero berr bgca boab boac boad boag boar boba bobb bobe bobo boca boce boco boda bodb bode bodo boea boec boee boeo boer boga bogd boge bogg bogo boob booc bood booe boog boor bor- bora bord bore borg boro borr brab brac brad brae brag brao brca brcb brce brda brdo brea breb brec bred bree breg breo brer broa brob broc brod broe brog broo bror brrr c-bo c-cd caaa caab caac caba cabe cabg cabo cac- caca cacc cace caco cacr cada cadc cadd cade cado cadr caec caer caga cage cagg cago cagr caod caor cara carb carc card care caro carr cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbdo cbea cbec cbee cber cbga cbgb cbrd cbre ccaa ccab ccac ccad ccag ccar ccba ccbc ccca cccb cccc ccdc ccdr cced ccee ccga ccgc ccob ccoc ccod ccra ccrc ccre ccrg 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 cege cego ceor cer- cera cerc cerd cere cero cgac cgcc cgcg cged cger cgro coad coag coba cobb cobe cobo coca coce coco coda codd code coed cogo coob cood cor- cora corb corc cord core corg coro corr crab crac crag crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creg creo crob croc crod croe croo cror d-bo daab daad daae daag daar daba dabb dabo daca dace dada dade dado daeb daer daga dage dagg dago dagr dara darb darc dard dare darg daro darr dbag dbar dbcc dcbc dcca dccb dccc dcdb dcgo dcra dddd ddoc ddrc ddre deac dead deae dear deba debe dec- deca decc decd dece deco deda dedd dede dedo deeb deed deeg deer dega dege dego deor der- dera derb derc dere derg dero derr dgac dgca dgeg dgge doab doae doar doba dobb dobe doca doce doco dod- doda dodd dode dodg dodo doea doeg doer dog- doga doge dogg dogo doob dood door dora dorc dord dore doro dorr draa drab drac drad drag drar drba drbc drca drda drea dred dree dreg drge drob drod drog drra 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 ecaa ecac ecad ecao ecar ecbc ecbe ecca eccb eccc ecce ecco ecdc eced eco- ecod ecog ecra ecrc ecrr edac edad edag edar edca edda eddc edde eddo ede- edea eder edge edoc edod edra eeca eede eeea eeee eega eeoc eera eerc eerg eero egaa egad egae egao egar egba egbe egcc egcg egcr egea egec egee eger eggb egge eggo ego- egor egra egre eocd eode eora eore erad erba erbb erbe erca ercc erce erda erde ereb erec ered erer erg- erga ergg ergo erob eroc erod eroe eroo erra errc erre erro gaar gaba gabb gabe gabo gabr gace gada gadd gade gado gaea gaec gaed gaer gaga gage gagg gago gara garb gard gare garg garo garr gbag gbbo gbde gc-c gcaa gcbc gccc gcda gcoa gcrg gdca gddb gdor gdrc geab gead gear geba gebe geca gece geda gedd gede gedo geed geer gege gegg gego geo- geog gera gerb gerd gere gero gggg goad goar goba gobe gobo goca goce gocr goda gode godo goed goer goga gogo good goog goor gora gorb gord gore gorg goro gorr grab grac grad grae grbr grcc grce grdc grea greb grec gree greg grob groc grod grog groo gror grrr 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 ocga ocra ocre ocro ocrr odac odbo odda oddd odea oded odeo oder odoo odor odra oec- oeca oecc oedo oeec oegb oera oere ogae ogar ogb ogba ogbe ogdc ogea ogee oger ogge ogoa ogod ogog ogra ogre ogro 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 oreg oreo orer orga