aaaa aaab aaac aaam aaar aaba aabb aabc aabm aabt aaca aacb aacc aacm aaco aacr aact aama aamb aamc aamo aamr aaoo aara aarc aarm aaro aart aata aatc aatt abaa abab abac abam abar abat abb- abba abbb abbo abbr abbt abca abcb abcc abcr abct abma abmb abmc abmt aboa abob aboo abor abot abra abrc abro abta ac-t acaa acab acac acar acat acba acca accc accm acco acct acma acmc acoa acom acor acot acr- acra acrc acrm acro acrr acta actc acto actt amaa amac amam amar amat amb- amba ambo ambr amca amcc amco amm- amma ammo amob amoc amoo amor amot amra amrc amro amta amtc amto aoba aoca aoma aora aorb aort aotc arab arac aram arar arat arba arc- arca arcm arco arct arma armc armm armo armt aroa arob arom aroo aror arr- arra arrc arro arrr arrt arta artc arto artr at-t ataa atab atac atar atat atca atcc atco atcr atm- atma atmo atob atoc atom ator atot atra atrc atrm atro atta atto attr baaa baam baar baat baba babb babm babo babr bac- baca bacc baco bact bama bamb bamc bamm bar- bara barb barc barm baro barr bart bata batc bato batt bbbb bbcm bbrc bcaa bcam bcar bcat bcbc bcca bccc bccm bcma bcor bcra bctc bmaa bmoc bmtc boab boac boar boat boba bobb bobo boca bocm boco boma bomb bomt boob booc boom boor boot bor- bora borm boro borr bort bota botb boto bott brab brac bram brao brat brca brcb brmc broa brob broc brom broo bror brot brrm brrr brtc btaa btcc btob btor btrc btrt bttb c-bo caaa caab caac caam caat caba cabo cac- caca cacc cacm caco cacr cama camb camc camm camo camt caor cara carb carc carm caro carr cart cat- cata catb catc catm cato catt cbac cbar cbat cbbc cbca cbcc cbcm cbcr cbct cbot cbrm cbrt cbta cbtc ccaa ccab ccac ccam ccar ccat ccba ccbc ccca cccb cccc cccm ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ccrt cctb cctc cctt cmaa cmac cmba cmbc cmcc cmmb cmmc cmoc cmot cmra cmrr cmta cmtc coat coba cobb cobo coca coco coct com- coma comb comc comm como comr coob coom coot cor- cora corb corc corm coro corr cort cota cotb cotc coto cott crab crac cram crar crat crbc crca crcc crcr crmb crmo crob croc crom croo cror crot crrt crtc crtm ctab ctba ctca ctma ctmo ctor ctot ctrc ctrm ctta maaa maac maam maar maat maba mabo mac- maca macb macc maco macr mact mama mamc mamo maoc maor mar- mara marc marm maro marr mart mata matc mato matr matt mbac mbam mbba mbca mbta mcaa mcac mcat mcba mcbc mcca mccc mcmc mcmt mcot mcrc mctc mmaa mmab mmac mmar mmcc mmcm mmct mmmc mmmm mmor mmrc moaa moab moac moam moar moat moba mobb mobo moca moco moma momo mooa moob mooc moor moot mora morb moro mort mota motb motm moto mott mr-c mrac mrbb mrbm mrca mrcb mrcc mrmc mrrc mrta mrtm mrtt mtaa mtab mtac mtbc mtbo mtcr mtoa mtom mtor mtrc mtrr mttr oama oara obba obbo obor obot obra obro ocab ocac ocam ocat ocbc occa occc occt ocma ocom ocra ocro ocrr oct- octa octo omac omam omao omar ombo omca omma omo- omoa omoo omor omra omro ooaa ooba oocr ooma oooo oora oort ootb orab orac oram orao orar orat orba orbb orbo orca orco orma ormo oro- orom oror orot orra orro orta ortc orto otac otar otma oto- otoo otor otra otro otta otto raab raam raat raba rabb rabo rac- raca racc raco ract rama ramb ramm ramo raob raoc raom rara rarb raro rata rato ratt rbbb rbbr rcac rcbc rcbo rccb rccc rctc roab roam roar roat rob- roba robb robo robt roca rocc roco roma romb romm romo roob room roor root rora rorc roro rort rota rotc roto rotr rott rrat rrmc rrrr rtca rtcc rtcm rtmc t-mo taa- taar taat taba tabb tabc tabo taca tacc taco tact tama tamc tamm tamo taoa taom taor tara tarb tarc tarm taro tarr tart tata tatb tato tatr tatt tbar tbca tbcb tbcc tbrb tbta tcam tcca tccc tcom tctc tmaa tmac tmbc tmbr tmca tmcc tmcm tmro tmtt toab toam toat toba tobo tobt toca toco toma tomb tomm tomo tomt tooa toom toor toot tora torc torm toro torr tort tota totc totm toto totr tott traa trab trac tram trao trat trca trcc trma trmb troa troc trom troo trot trra trtc trtr ttab ttbb ttma tttt