a-a a-b aaa aab aak aam aan aar aas aau ab- aba abb abk abm abn abr abs abu aka akb akk akm akn akr aks aku ama amb amk amm amn amr ams amu an- ana anb ank anm ann anr ans anu ar- ara arb ark arm arn arr ars aru as- asa asb ask asm asn asr ass asu au- aua aub auk aum aun aur aus b-u baa bab bak bam ban bar bas bau bba bbb bbk bbm bbn bbr bbs bbu bka bkb bkk bkm bkn bkr bks bma bmb bmk bmm bmn bmr bms bmu bna bnb bnk bnn bnr bns bnu bra brb brk brm brn brr brs bru bsa bsb bsk bsm bsn bsr bss bsu bua bub buk bum bun bur bus buu ka- kaa kab kak kam kan kar kas kau kba kbb kbk kbm kbn kbr kbs kbu kkb kkk kkm kkn kkr kks kku kma kmb kmk kmm kms kmu kn- kna knk knm knn knr knu kra krk krn krr krs kru ksa ksb ksk ksm ksn ksr kss ksu kub kuk kum kun kur kus kuu m-r maa mab mak mam man mar mas mau mba mbb mbk mbm mbr mbs mbu mka mkb mkk mkm mkn mkr mks mku mma mmb mmk mmm mmn mmr mms mmu mna mnb mnk mnm mnn mnr mns mnu mra mrb mrk mrm mrn mrr mrs mru msa msb msk msm msn msr mss msu mua mub muk mum mun mur mus muu naa nab nak nam nan nar nas nau nba nbb nbk nbm nbn nbr nbs nbu nka nkk nkm nkn nkr nks nku nma nmb nmk nmm nmn nmr nms nmu nna nnb nnk nnm nnn nns nnu nra nrb nrk nrm nrn nrr nrs nru nsa nsb nsk nsm nsn nsr nss nsu nua nub nuk num nun nur nus nuu ra- raa rab rak ram ran rar ras rau rba rbb rbk rbm rbn rbr rbs rbu rkb rkk rkm rks rku rma rmb rmm rmn rmr rms rna rnb rnm rnn rnr rns rnu rra rrb rrk rrm rrn rrr rrs rru rsa rsb rsk rsm rsn rsr rss rsu rua rub ruk rum run rur rus ruu saa sab sak sam san sar sas sau sba sbb sbk sbm sbn sbr sbs sbu sk- ska skb skk skm skr sks sku sma smb smk smm smn smr sms smu sna snb snk snm snn snr sns snu sr- sra srb srk srm srn srr srs ss- ssa ssb ssk ssm ssn ssr sss ssu sua sub suk sum sun sur sus suu ua- uaa uab uak uam uan uar uas uau uba ubb ubk ubn ubr ubs ubu uka ukb ukk ukn ukr uku um- uma umb umm umn umr ums umu un- una unb unk unm unn unr uns unu ur- ura urb urk urm urn urr urs uru usa usb usk usm usn usr uss usu uua uum uun uur uus uuu