-al -ol a-a a-b a-i a-t aaa aab aaf aag aai aak aal aao aat ab- aba abb abf abg abi abk abl abo abt af- afa afb aff afg afi afk afl afo aft ag- aga agb agf agg agi agk agl ago agt ai- aia aib aif aig aii aik ail aio ait aka akb akg aki akk akl ako al- ala alb alf alg ali alk all alo alt aoa aob aof aog aoi aok aol aoo aot at- ata atb atf atg ati atl ato att baa bab baf bag bai bak bal bao bat bba bbb bbf bbg bbi bbk bbl bbo bbt bfa bfb bff bfg bfi bfl bfo bft bga bgb bgf bgg bgi bgk bgl bgo bgt bi- bia bib bif big bii bik bil bio bit bka bkb bkf bkg bkk bkl bko bkt bla blb blf blg bli blk bll blo blt boa bob bof bog boi bok bol boo bot bta btb btf btg bti btk btl bto btt faa fab faf fag fai fak fal fao fat fba fbb fbf fbg fbi fbk fbl fbo fbt ffa fff ffg ffi ffk ffl ffo fft fga fgb fgf fgg fgi fgl fgt fia fib fif fig fii fik fil fit fka fkb fkf fkg fki fkk fkl fkt fla flb flf flg fli fll flo flt foa fob fof fog foi fok fol foo fot fta ftb ftf ftg fti ftk ftl fto ftt gaa gab gaf gag gai gak gal gao gat gba gbf gbg gbi gbk gbl gbo gbt gfa gfb gff gfi gfk gfl gfo gft gga ggb ggg ggi ggo ggt gia gib gif gig gii gik gil gio git gka gkb gko gkt gla glb glf glg gli glk gll glo glt goa gob gof gog goi gok gol goo got gta gtb gtf gtg gti gtk gtl gto gtt i-f ia- iaa iab iaf iag iai ial iao iat iba ibb ibf ibg ibi ibk ibl ibo ibt ifa ifb iff ifg ifi ifl ifo ift iga igb igf igg igi igk igl igo igt iia iib iif iii iil iio iit ika ikb ikf iki ikk ikl iko ikt il- ila ilb ilf ilg ili ilk ill ilo ilt io- ioa iob iof iog ioi iol ioo iot ita itb itf itg iti itk itl ito itt k-t ka- kaa kab kaf kag kai kak kal kao kat kba kbb kbf kbi kbk kbl kbo kfa kff kfg kfi kfo kga kgb kgf kgi kgl kgo kia kib kif kig kii kik kil kio kit kkb kki kkk kkl kkt kl- kla klb klf klg kli klo klt koa kob kof kog koi kok kol koo kot kta ktb ktf ktg ktk ktl kto ktt la- laa lab laf lag lai lak lal lao lat lba lbb lbf lbg lbi lbk lbl lbo lbt lfa lfb lff lfg lfi lfk lfl lfo lft lga lgb lgf lgg lgi lgk lgl lgo lgt lia lib lif lig lii lik lil lio lit lka lkb lkg lkl lkt lla llb llf llg lli llk lll llo llt loa lob lof log loi lok lol loo lot lta ltb ltf ltg lti ltk ltl lto ltt o-i oaa oab oaf oag oai oak oal oao oat ob- oba obb obf obg obi obk obl obo obt of- ofa ofb off ofg ofi ofl ofo oft oga ogf ogg ogi ogl ogo ogt oia oib oif oii oik oil oio oit oka okb okg oki okk okl oko ola olb olf olg oli olk oll olo olt oo- ooa oob oof oog ooi ook ool ooo oot ot- ota otb otf otg oti otk otl oto ott taa tab taf tag tai tak tal tao tat tba tbb tbf tbg tbi tbk tbl tbo tbt tfa tfb tff tfg tfi tfk tfl tfo tft tga tgb tgf tgg tgi tgk tgl tgo tgt tia tib tif tig tii tik til tio tit tka tkb tkg tkk tkl tko tkt tla tlf tlg tli tlk tll tlo tlt to- toa tob tof tog toi tok tol too tot tta ttb ttf ttg tti ttk ttl tto ttt