a-a a-b a-i aaa aab aai aak aam aan aao aau ab- aba abb abi abk abm abn abo abu ai- aia aib aii aik aim ain aio aiu aka akb aki akk akm akn ako aku ama amb ami amk amm amn amo amu an- ana anb ani ank anm ann ano anu aoa aob aoi aok aom aon aoo aou au- aua aub aui auk aum aun auo b-u baa bab bai bak bam ban bao bau bba bbb bbi bbk bbm bbn bbo bbu bi- bia bib bii bik bim bin bio biu bka bkb bkk bkm bkn bko bma bmb bmi bmk bmm bmn bmo bmu bna bnb bni bnk bnn bno bnu boa bob boi bok bom bon boo bou bua bub bui buk bum bun buo buu ia- iaa iab iai iam ian iao iau iba ibb ibi ibk ibm ibn ibo ibu iia iib iii iim iin iio iiu ika ikb iki ikk iko iku im- ima imb imi imm imn imo imu in- ina inb ini ink inm inn ino inu io- ioa iob ioi iom ion ioo iou iu- iua iub iui ium ka- kaa kab kai kak kam kan kao kau kba kbb kbi kbk kbm kbn kbo kbu kia kib kii kik kim kin kio kiu kkb kki kkk kkm kkn kku kma kmb kmi kmk kmm kmo kmu kn- kna kni knk knm knn kno knu koa kob koi kok kom kon koo kou kub kui kuk kum kun kuu m-o maa mab mai mak mam man mao mau mba mbb mbi mbk mbm mbo mbu mi- mia mib mii mik mim min mio miu mka mkb mkk mkm mkn mko mku mma mmb mmi mmk mmm mmn mmo mmu mna mnb mni mnk mnm mnn mno mnu moa mob moi mok mom mon moo mou mua mub mui muk mum mun muu n-i naa nab nai nak nam nan nao nau nba nbb nbi nbk nbm nbn nbo nbu nia nib nii nik nim nin nio niu nka nki nkk nkm nkn nko nku nma nmb nmi nmk nmm nmn nmo nmu nna nnb nni nnk nnm nnn nno nnu no- noa nob noi nok nom non noo nou nua nub nui nuk num nun nuo nuu o-i oaa oab oai oak oam oan oao oau ob- oba obb obi obk obm obn obo obu oia oib oii oik oim oin oio oiu oka okb oki okk oko oku om- oma omb omi omm omn omo omu on- ona onb oni onk onn ono onu oo- ooa oob ooi ook oom oon ooo ou- oua oui ouk oum oun ouo ua- uaa uab uai uak uam uan uao uau uba ubb ubi ubk ubn ubo ubu uia uib uii uim uin uio uiu uka ukb uki ukk ukn uku um- uma umb umi umm umn umo umu un- una unb uni unk unm unn uno unu uoa uob uok uom uon uoo uua uum uun uuu