a-be aaaa aaab aaac aaae aaam aaar aaba aabb aabc aabm aaca aacb aacc aace aacm aaco aacr aacu aaea aaec aaem aama aamb aamc aame aamo aamr aaoe aaoo aara aarc aare aarm aaro aaru abaa abab abac abae abam abar abau abb- abba abbb abbe abbo abbr abca abcb abcc abcr abec abee aber abma abmb abmc aboa abob aboo abor abou abra abrc abro abua abue abum acaa acab acac acae acar acba acca accc acce accm acco accu ace- acea acec acem acer acma acmc acme acmu acoa acoe acom acor acou acr- acra acrc acre acrm acro acrr acu- acue acum acuo acur aeac aecb aeer aeom aer- aera aerc aero amaa amac amae amam amar amb- amba ambe ambo ambr ambu amca amcc amco amec amee amer ameu amm- amma amme ammo ammu amob amoc amoo amor amou amra amrc amro amua amum amur aoba aoca aoce aoeu aoma aora aorb arab arac arae aram arar arau arba arbe arc- arca arce arcm arco area arec aree arem areo areu arma armc arme armm armo armu aroa arob aroe arom aroo aror arr- arra arrc arre arro arrr arru arua arub arue arum auaa aube auca auce auer auma aur- aura aure auro baaa baam baar baba babb babe babm babo babr babu bac- baca bacc bace baco baer bama bamb bamc bame bamm bamu bar- bara barb barc bare barm baro barr baru bau- baum baur bbau bbbb bbcm bbeb bbrc bcaa bcam bcar bcbc bcca bccc bccm bcec bcer bcma bcor bcra bcru bcuc beam bear beau beba bebb bebe bebo beca becu beeb beem beer bema beme bemu beo- beor bera berc bere berm bero berr beru beur bmaa bmce bmoc boab boac boar boba bobb bobe bobo bobu boca boce bocm boco bocu boea boec boee boeo boer boma bomb bome bomu boob booc booe boom boor bor- bora bore borm boro borr boru boua boue boum bour brab brac brae bram brao brau brca brcb brce brea breb brec bree brem breo brer brmc broa brob broc broe brom broo bror brou brrm brrr bruc brue brum buar buba bubb bube bubo bubu buca bucc buce buco bucu buea buem buer bueu bum- buma bumb bur- bura burb bure burm buro burr buru c-bo caaa caab caac caam caba cabe cabo cabu cac- caca cacc cace cacm caco cacr caec caem caer caeu cama camb camc came camm camo caor cara carb carc care carm caro carr cauc caum cauo cbac cbar cbbc cbca cbcc cbce cbcm cbcr cbcu cbea cbec cbee cber cbme cbre cbrm ccaa ccab ccac ccam ccar ccba ccbc ccca cccb cccc cccm cccu ccee ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ccre ccuc ceac cear ceba cebu cec- ceca cece cecm ceco ceeb ceec ceem cema cemb ceme cemm cemr cemu ceor ceou cer- cera cerc cere cero cmaa cmac cmba cmbc cmcc cmea cmec cmmb cmmc cmoc cmra cmrr coba cobb cobe cobo cobu coca coce coco cocu com- coma comb comc come comm como comr comu coob coom cor- cora corb corc core corm coro corr coua coub coue cour crab crac cram crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree crem creo creu crmb crmo crob croc croe crom croo cror crub crue crum cuau cub- cuba cubb cube cuca cucc cuce cucm cuer cum- cuma cume cura curb cure curo curr eaba eaca eacc eaec eama eame eaom eara earb eare earo ebac ebam ebba ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ebru ebur ecaa ecac ecam ecao ecar ecbc ecbe ecca eccb eccc ecce eccm ecco ecem ecma eco- ecou ecra ecrc ecrm ecrr ecru ecua eeca eeea eeee eemo eeoc eera eerc eero emac emae emam emar emba embe embo embr emcc emco emer emeu emma emme emmu emor emra emre eora eore eram erau erba erbb erbe erca ercc erce ereb erec erem erer erma ermc erme ermo erob eroc eroe eroo erra errc erre erro erua erub eruc erum erur euba eubc euer eumc eur- eura eurc eure euro maaa maac maam maar maba mabe mabo mabu mac- maca macb macc mace maco macr macu maee maem maeo maer mama mamc mame mamo mamu maoc maor mar- mara marc mare marm maro marr maru maua maum maur mbac mbam mbba mbca mbou mcaa mcac mcba mcbc mcca mccc mcmc mcrc mear mebe mebo mec- meca mecc mece meco mecr meem meer mema memc meme memo memr memu meoc meor meou mer- mera merb merc mere merm mero meru meum mmaa mmab mmac mmar mmcc mmcm mmea mmmc mmmm mmor mmrc moaa moab moac moam moar moba mobb mobe mobo moca moco moea moma mome momo momu mooa moob mooc mooe moor mora morb more moro moru moue mour mr-c mrac mrbb mrbm mrca mrcb mrcc mrce mreb mree mrmc mrrc muac muar mube mubo muc- mucc muce mucu muee muma mume mumm mumo mumu mura murc mure muro murr muru o-eo oaau oaer oama oara oare obba obbo obea obec ober oboe obor obra obre obro ocab ocac ocam ocbc occa occc oce ocee ocma ocom ocra ocre ocro ocrr ocum ocur oec- oeca oecc oeec oeme oera oere oerm omac omam omao omar ombe ombo ombu omca omee omeo omer omma omo- omoa omoe omoo omor omra omre omro omuo ooaa ooba oobe oocr ooer ooma oome oooo oora oore orab orac orae oram orao orar orba orbb orbe orbo orbu orca orce orco ore- orea oreb orec orem oreo orer orma orme ormo oro- oroe orom oror orra orro orub orum ouac oucc ouea ouer ouma oume our- oura oure ouro ouu- raab raam raba rabb rabe rabo rabu rac- raca racc race raco racu raec raer rama ramb rame ramm ramo ramu raob raoc raom rara rarb rare raro raua raub rauc raue raum rbbb rbbr rcac rcbc rcbo rccb rccc rea- reac reae