a-a a-b a-t aaa aab aak aam aan aao aar aas aat aau ab- aba abb abk abm abn abo abr abs abt abu aka akb akk akm akn ako akr aks aku ama amb amk amm amn amo amr ams amt amu an- ana anb ank anm ann ano anr ans ant anu aoa aob aok aom aon aoo aor aos aot aou ar- ara arb ark arm arn aro arr ars art aru as- asa asb ask asm asn aso asr ass ast asu at- ata atb atm atn ato atr ats att atu au- aua aub auk aum aun auo aur aus aut b-u baa bab bak bam ban bao bar bas bat bau bba bbb bbk bbm bbn bbo bbr bbs bbt bbu bka bkb bkk bkm bkn bko bkr bks bkt bma bmb bmk bmm bmn bmo bmr bms bmt bmu bna bnb bnk bnn bno bnr bns bnt bnu boa bob bok bom bon boo bor bos bot bou bra brb brk brm brn bro brr brs brt bru bsa bsb bsk bsm bsn bso bsr bss bst bsu bta btb btk btm btn bto btr bts btt btu bua bub buk bum bun buo bur bus but buu k-t ka- kaa kab kak kam kan kao kar kas kat kau kba kbb kbk kbm kbn kbo kbr kbs kbu kkb kkk kkm kkn kkr kks kkt kku kma kmb kmk kmm kmo kms kmt kmu kn- kna knk knm knn kno knr knt knu koa kob kok kom kon koo kor kos kot kou kra krk krn kro krr krs krt kru ksa ksb ksk ksm ksn kso ksr kss kst ksu kta ktb ktk ktm ktn kto ktr kts ktt ktu kub kuk kum kun kur kus kut kuu m-o m-r maa mab mak mam man mao mar mas mat mau mba mbb mbk mbm mbo mbr mbs mbt mbu mka mkb mkk mkm mkn mko mkr mks mkt mku mma mmb mmk mmm mmn mmo mmr mms mmt mmu mna mnb mnk mnm mnn mno mnr mns mnt mnu moa mob mok mom mon moo mor mos mot mou mra mrb mrk mrm mrn mro mrr mrs mrt mru msa msb msk msm msn mso msr mss mst msu mta mtb mtk mtm mtn mto mtr mts mtt mtu mua mub muk mum mun mur mus mut muu naa nab nak nam nan nao nar nas nat nau nba nbb nbk nbm nbn nbo nbr nbs nbt nbu nka nkk nkm nkn nko nkr nks nkt nku nma nmb nmk nmm nmn nmo nmr nms nmt nmu nna nnb nnk nnm nnn nno nns nnt nnu no- noa nob nok nom non noo nor nos not nou nra nrb nrk nrm nrn nro nrr nrs nrt nru nsa nsb nsk nsm nsn nso nsr nss nst nsu nta ntb ntk ntm ntn nto ntr nts ntt ntu nua nub nuk num nun nuo nur nus nut nuu oaa oab oak oam oan oao oar oas oat oau ob- oba obb obk obm obn obo obr obs obt obu oka okb okk oko okr oks oku om- oma omb omm omn omo omr oms omt omu on- ona onb onk onn ono onr ons ont onu oo- ooa oob ook oom oon ooo oor oos oot or- ora orb ork orm orn oro orr ors ort oru os- osa osb osk osm osn oso osr oss ost osu ot- ota otb otk otm otn oto otr ots ott otu ou- oua ouk oum oun ouo our ous out ra- raa rab rak ram ran rao rar ras rat rau rba rbb rbk rbm rbn rbo rbr rbs rbt rbu rkb rkk rkm rko rks rkt rku rma rmb rmm rmn rmo rmr rms rmt rna rnb rnm rnn rno rnr rns rnt rnu roa rob rok rom ron roo ror ros rot rou rra rrb rrk rrm rrn rrr rrs rrt rru rsa rsb rsk rsm rsn rso rsr rss rst rsu rta rtb rtk rtm rtn rto rtr rts rtt rtu rua rub ruk rum run ruo rur rus rut ruu saa sab sak sam san sao sar sas sat sau sba sbb sbk sbm sbn sbo sbr sbs sbt sbu sk- ska skb skk skm sko skr sks skt sku sma smb smk smm smn smo smr sms smt smu sna snb snk snm snn sno snr sns snt snu soa sob sok som son soo sor sos sot sou sr- sra srb srk srm srn sro srr srs srt ss- ssa ssb ssk ssm ssn sso ssr sss sst ssu sta stb stk stm stn sto str sts stt stu sua sub suk sum sun suo sur sus sut suu taa tab tak tam tan tao tar tas tat tau tba tbb tbk tbm tbn tbo tbr tbs tbt tbu tka tkb tkk tkm tko tkr tks tkt tma tmb tmk tmm tmn tmo tmr tms tmt tmu tna tnb tnk tnm tnn tno tnr tns tnt to- toa tob tok tom ton too tor tos tot tou tra trb trk trm trn tro trr trs trt tru tsa tsb tsk tsm tsn tso tsr tss tst tsu tta ttb ttk ttm ttn tto ttr tts ttt ttu tua tub tuk tum tun tuo tur tus tut tuu ua- uaa uab uak uam uan uao uar uas uat uau uba ubb ubk ubn ubo ubr ubs ubt ubu uka ukb ukk ukn ukr uku um- uma umb umm umn umo umr ums umt umu un- una unb unk unm unn uno unr uns unt unu uoa uob uok uom uon uoo uor uos uot ur- ura urb urk urm urn uro urr urs urt uru usa usb usk usm usn uso usr uss ust usu uta utb utk utm utn uto utr uts utt utu uua uum uun uur uus uut uuu