a-a a-b aaa aab aae aag aak aan aao aau ab- aba abb abe abg abk abn abo abu aea aeb aee aeg aek aen aeo aeu ag- aga agb age agg agk agn ago agu aka akb ake akg akk akn ako aku an- ana anb ane ang ank ann ano anu aoa aob aoe aog aok aon aoo aou au- aua aub aue aug auk aun auo b-u baa bab bae bag bak ban bao bau bba bbb bbe bbg bbk bbn bbo bbu be- bea beb bee beg bek ben beo beu bga bgb bge bgg bgk bgn bgo bgu bka bkb bke bkg bkk bkn bko bna bnb bne bng bnk bnn bno bnu boa bob boe bog bok bon boo bou bua bub bue bug buk bun buo buu eaa eab eae eag eak ean eao eau eba ebb ebe ebg ebk ebn ebo ebu eea eeb eee eeg eek een eeo ega egb ege egg egn ego egu eka ekb eke ekg eko eku en- ena enb ene eng enk enn eno enu eo- eoa eob eoe eog eok eon eoo eou eu- eua eub eue eug eun gaa gab gae gag gak gan gao gau gba gbe gbg gbk gbn gbo gbu ge- gea geb gee geg gek gen geo geu gga ggb ggg ggn ggo ggu gka gkb gkn gko gna gnb gne gnn gno gnu goa gob goe gog gok gon goo gou gu- gua gub gue gug guk gun guo guu ka- kaa kab kae kag kak kan kao kau kba kbb kbe kbk kbn kbo kbu ke- kea keb kee keg kek ken keo kga kgb kgo kgu kkb kke kkk kkn kku kn- kna kne kng knk knn kno knu koa kob koe kog kok kon koo kou kub kue kug kuk kun kuu naa nab nae nag nak nan nao nau nba nbb nbe nbg nbk nbn nbo nbu ne- nea neb nee neg nek nen neo neu nga ngb nge ngg ngk ngn ngo ngu nka nke nkk nkn nko nku nna nnb nne nng nnk nnn nno nnu no- noa nob noe nog nok non noo nou nua nub nue nug nuk nun nuo nuu oaa oab oae oag oak oan oao oau ob- oba obb obe obg obk obn obo obu oea oeb oee oeg oen oeo oga oge ogg ogn ogo oka okb oke okg okk oko oku on- ona onb one ong onk onn ono onu oo- ooa oob oog ook oon ooo ou- oua oue ouk oun ouo ua- uaa uab uae uag uak uan uao uau uba ubb ube ubg ubk ubn ubo ubu uea ueb uee ueg uen uga ugb uge ugg ugk ugn ugo ugu uka ukb uke ukk ukn uku un- una unb une ung unk unn uno unu uoa uob uoe uog uok uon uoo uua uue uug uun uuu