a-a a-b aaa aab aaf aag aak aan aao aau aay ab- aba abb abf abg abk abn abo abu aby af- afa afb aff afg afk afn afo afu afy ag- aga agb agf agg agk agn ago agu agy aka akb akg akk akn ako aku an- ana anb anf ang ank ann ano anu any aoa aob aof aog aok aon aoo aou au- aua aub auf aug auk aun auo ay- aya ayf ayk ayn ayo ayu b-u baa bab baf bag bak ban bao bau bay bba bbb bbf bbg bbk bbn bbo bbu bby bfa bfb bff bfg bfn bfo bfu bfy bga bgb bgf bgg bgk bgn bgo bgu bka bkb bkf bkg bkk bkn bko bna bnb bnf bng bnk bnn bno bnu boa bob bof bog bok bon boo bou boy bua bub buf bug buk bun buo buu buy by- bya byf byg byk byn byo byu faa fab faf fag fak fan fao fau fay fba fbb fbf fbg fbk fbn fbo fbu ffa fff ffg ffk ffn ffo ffu ffy fga fgb fgf fgg fgn fka fkb fkf fkg fkk fna fnb fnf fng fnk fnn fnu foa fob fof fog fok fon foo fou foy fua fub fuf fug fuk fun fuo fuu fy- fya fyb fyk fyn fyo gaa gab gaf gag gak gan gao gau gay gba gbf gbg gbk gbn gbo gbu gby gfa gfb gff gfk gfo gfy gga ggb ggg ggn ggo ggu gka gkb gkn gko gna gnb gnf gnn gno gnu goa gob gof gog gok gon goo gou goy gu- gua gub guf gug guk gun guo guu guy gy- gya gyb gyf gyn gyo ka- kaa kab kaf kag kak kan kao kau kay kba kbb kbf kbk kbn kbo kbu kfa kff kfg kfo kfu kga kgb kgf kgo kgu kgy kkb kkk kkn kku kky kn- kna knf kng knk knn kno knu koa kob kof kog kok kon koo kou koy kub kug kuk kun kuu kuy kya kyn kyo kyu naa nab naf nag nak nan nao nau nay nba nbb nbf nbg nbk nbn nbo nbu nfa nfb nff nfk nfn nfo nfu nga ngb ngf ngg ngk ngn ngo ngu nka nkf nkk nkn nko nku nky nna nnb nnf nng nnk nnn nno nnu no- noa nob nof nog nok non noo nou noy nua nub nug nuk nun nuo nuu nuy nya nyf nyg nyk nyn nyo nyu nyy oaa oab oaf oag oak oan oao oau ob- oba obb obf obg obk obn obo obu oby of- ofa ofb off ofg ofn ofo ofu oga ogf ogg ogn ogo ogy oka okb okg okk oko oku on- ona onb onf ong onk onn ono onu ony oo- ooa oob oof oog ook oon ooo ou- oua ouf ouk oun ouo oya oyo ua- uaa uab uaf uag uak uan uao uau uay uba ubb ubf ubg ubk ubn ubo ubu uby ufa uff ufg ufn ufo ufu uga ugb ugf ugg ugk ugn ugo ugu uka ukb ukf ukk ukn uku un- una unb unf ung unk unn uno unu uny uoa uob uog uok uon uoo uua uug uun uuu uyo uyu yaa yab yaf yag yak yan yao yau yay ybf ybg yby yfa yff yfu yga ygo yka ykk ykn yna yng ynk ynn ynu yny yob yof yog yok yon yoo you yoy yua yug yuk yun yuo yuu yuy yyb yyf yyg yyu yyy