a-a a-b aaa aab aaf aak aam aao aar ab- aba abb abf abk abm abo abr af- afa afb aff afk afm afo afr aka akb akk akm ako akr ama amb amf amk amm amo amr aoa aob aof aok aom aoo aor ar- ara arb arf ark arm aro arr baa bab baf bak bam bao bar bba bbb bbf bbk bbm bbo bbr bfa bfb bff bfm bfo bfr bka bkb bkf bkk bkm bko bkr bma bmb bmf bmk bmm bmo bmr boa bob bof bok bom boo bor bra brb brf brk brm bro brr faa fab faf fak fam fao far fba fbb fbf fbk fbm fbo fbr ffa fff ffk ffm ffo ffr fka fkb fkf fkk fkm fma fmb fmf fmm fmo fmr foa fob fof fok fom foo for fra frb frf frk frm fro frr ka- kaa kab kaf kak kam kao kar kba kbb kbf kbk kbm kbo kbr kfa kff kfm kfo kkb kkk kkm kkr kma kmb kmf kmk kmm kmo koa kob kof kok kom koo kor kra krf krk kro krr m-f m-o m-r maa mab maf mak mam mao mar mba mbb mbf mbk mbm mbo mbr mfa mfb mff mfm mfo mfr mka mkb mkk mkm mko mkr mma mmb mmf mmk mmm mmo mmr moa mob mof mok mom moo mor mra mrb mrf mrk mrm mro mrr oaa oab oaf oak oam oao oar ob- oba obb obf obk obm obo obr of- ofa ofb off ofm ofo ofr oka okb okk oko okr om- oma omb omf omm omo omr oo- ooa oob oof ook oom ooo oor or- ora orb orf ork orm oro orr ra- raa rab raf rak ram rao rar rba rbb rbf rbk rbm rbo rbr rfa rfb rff rfk rfm rfo rfr rkb rkf rkk rkm rko rma rmb rmf rmm rmo rmr roa rob rof rok rom roo ror rra rrb rrf rrk rrm rrr

a-ak a-ok aaaa aaab aaaf aaam aaar aaba aabb aabm aafa aafb aaff aaka aama aamb aamo aamr aaoo aara aarm aaro abaa abab abaf abak abam abar abb- abba abbb abbo abbr abff abma abmb aboa abob abof abok aboo abor abra abro afaa afak afam afao afar affa affo afka afkr afma afoa afoo afor afr- afra afrm afro akaa akam akao akar akka akko akok akom akr- akra amaa amam amar amb- amba ambo ambr amfm amfr amka amm- amma ammo amob amof amok amoo amor amra amro aoba aoma aora aorb arab araf arak aram arar arba arfa arfb arff arka arko arma armm armo aroa arob arom aroo aror arr- arra arrk arro arrr baaa baaf baak baam baar baba babb babm babo babr baff bafo bak- baka bako bakr bama bamb bamf bamm bar- bara barb barf bark barm baro barr bbbb bmaa boab boak boar boba bobb bobo bofa boff boka boko boma bomb boob boof book boom boor bor- bora borf bork borm boro borr brab braf brak bram brao brfm brka brkb broa brob brok brom broo bror brrm brrr f--k faaa faam faba fabm fabo fafa faff fafo fako fama famo fara farb fark farm faro farr fbar fbom ffar ffff ffrr fkab foaf foak foam foar foba fofo foma fomo foof fook foom for- fora forb fork form foro forr frab frak fram frob from kaaa kaab kaaf kaak kaam kaar kaba kabb kabf kabo kabr kafa kaff kafm kafr kaka kakk kakm kako kam- kama kamb kamm kamo kamr kaoa kaok kaor kara karb karf kark karm karo karr kbaa kbab kbak kbam kbar kbba kbbb kbbf kbbk kbbm kbbo kbbr kbfb kbff kbfk kbfm kbfo kbfr kbkb kbkf kbkk kbko kbkr kbmb kbmo kbmr kboa kbob kbok kboo kbra kbrb kbrf kbrk kbro kfab kfar kfbk kffa kffb kfff kffk kffm kfka kfkb kfma kfmb kfmf kfmk kfmm kfmo kfmr kfok kfom kfoo kfor kfra kfrm kfro kfrr kkaa kkam kkar kkba kkbb kkbo kkbr kkfm kkfr kkkk kkma kkmk kkmo kkmr kkoa kkob kkoo kkor kkrb kkrf kkrk kkro kkrr kmak kmam kmbr kmfa kmfm kmfr kmkf kmkk kmko kmmf kmmk kmmm kmmo kmmr kmoa kmob kmok kmom kmor kmrb kmrf kmro kmrr koab koak koar koba kobb kobk kobo kobr kofa koff kofk kofm kofo koka kokb kokf kokk koko kokr koma komb komo komr koob kook kooo koor kora korb korf kork koro korr krab krak kram krar krba krbb krbk krbm krbr krff krfm krfo krka krkk krko krkr krma krmb krmo krmr kroa krob krof krok krom kroo kror krrb krrf krrk krrm krro krrr maaa maaf maak maam maar maba mabo mafa mafb maff mafk maka mako mama mamf mamo maor mar- mara marf mark marm maro marr mbam mbba mfbm mffa mfor mkak mkfm mmaa mmab mmar mmff mmmm mmor mmrf moaa moab moaf moam moar moba mobb mobo mofa moff mofo moka moko moma momo mooa moob mook moor mora morb morf mork moro mrbb mrbm mrkr oafo oama oara obak obba obbo obkb obok obor obra obro off- offa offo offr ofor ofra okak okam okka okko okmo okok okom okor okra okro omak omam omao omar ombo omma omo- omoa omoo omor omra omro ooaa ooak ooba ooff ooma oooo oora orab orak oram orao orar orba orbb orbo orff orka orko orma ormo oro- orof orok orom oror orra orro raab raaf raak raam raba rabb rabk rabo rafa raff raka rakk rama ramb ramm ramo raob raok raom rara rarb rarf rark raro rbaf rbbb rbbr rbmk rfam rkkf rmaf roab roaf roak roam roar rob- roba robb robo roff rofo roka rokk roko rokr roma romb romk romm romo roob roof rook room roor rora rork roro rrkm rrrr

-aaa- -form a-ram aaaam aabaa aabba aabra aakko aamra aaram aarma abaab ababa abaka abako abara abbar abfab abkar abkoo aboab abobo aboma abomb abook abora abrak abram abrar afara afarm affor