a-a a-b aaa aab aad aak aam aan aas aau ab- aba abb abd abk abm abn abs abu ad- ada adb add adk adm adn ads adu aka akb akd akk akm akn aks aku ama amb amd amk amm amn ams amu an- ana anb and ank anm ann ans anu as- asa asb asd ask asm asn ass asu au- aua aub aud auk aum aun aus b-u baa bab bad bak bam ban bas bau bba bbb bbd bbk bbm bbn bbs bbu bda bdb bdd bdk bdm bds bdu bka bkb bkk bkm bkn bks bma bmb bmd bmk bmm bmn bms bmu bna bnb bnd bnk bnn bns bnu bsa bsb bsd bsk bsm bsn bss bsu bua bub bud buk bum bun bus buu daa dab dad dak dam dan das dau dba dbb dbd dbk dbm dbn dbs dbu dda ddb ddd ddk ddm ddn dds ddu dka dkb dkk dkm dks dku dma dmb dmd dmk dmm dmn dms dmu dna dnb dnd dnk dnm dnn dns dsa dsb dsd dsk dsm dsn dss dsu dua dub dud duk dum dun dus ka- kaa kab kad kak kam kan kas kau kba kbb kbd kbk kbm kbn kbs kbu kda kdb kdk kdm kds kdu kkb kkk kkm kkn kks kku kma kmb kmd kmk kmm kms kmu kn- kna knd knk knm knn knu ksa ksb ksd ksk ksm ksn kss ksu kub kud kuk kum kun kus kuu maa mab mad mak mam man mas mau mba mbb mbd mbk mbm mbs mbu mda mdb mdd mdk mdm mdn mds mdu mka mkb mkd mkk mkm mkn mks mku mma mmb mmd mmk mmm mmn mms mmu mna mnb mnk mnm mnn mns mnu msa msb msd msk msm msn mss msu mua mub mud muk mum mun mus muu naa nab nad nak nam nan nas nau nba nbb nbd nbk nbm nbn nbs nbu nda ndb ndd ndk ndm ndn nds ndu nka nkk nkm nkn nks nku nma nmb nmd nmk nmm nmn nms nmu nna nnb nnk nnm nnn nns nnu nsa nsb nsd nsk nsm nsn nss nsu nua nub nud nuk num nun nus nuu saa sab sad sak sam san sas sau sba sbb sbd sbk sbm sbn sbs sbu sda sdb sdd sdk sdm sdn sds sdu sk- ska skb skd skk skm sks sku sma smb smd smk smm smn sms smu sna snb snd snk snm snn sns snu ss- ssa ssb ssd ssk ssm ssn sss ssu sua sub sud suk sum sun sus suu ua- uaa uab uad uak uam uan uas uau uba ubb ubk ubn ubs ubu uda udb udd udk udm udn uds udu uka ukb ukk ukn uku um- uma umb umd umm umn ums umu un- una unb und unk unm unn uns unu usa usb usd usk usm usn uss usu uua uum uun uus uuu