a-a a-b a-t aaa aab aad aak aam aan aao aar aas aat aau ab- aba abb abd abk abm abn abo abr abs abt abu ad- ada adb add adk adm adn ado adr ads adt adu aka akb akd akk akm akn ako akr aks aku ama amb amd amk amm amn amo amr ams amt amu an- ana anb and ank anm ann ano anr ans ant anu aoa aob aod aok aom aon aoo aor aos aot aou ar- ara arb ard ark arm arn aro arr ars art aru as- asa asb asd ask asm asn aso asr ass ast asu at- ata atb atd atm atn ato atr ats att atu au- aua aub aud auk aum aun auo aur aus aut b-u baa bab bad bak bam ban bao bar bas bat bau bba bbb bbd bbk bbm bbn bbo bbr bbs bbt bbu bda bdb bdd bdk bdm bdo bdr bds bdt bdu bka bkb bkk bkm bkn bko bkr bks bkt bma bmb bmd bmk bmm bmn bmo bmr bms bmt bmu bna bnb bnd bnk bnn bno bnr bns bnt bnu boa bob bod bok bom bon boo bor bos bot bou bra brb brd brk brm brn bro brr brs brt bru bsa bsb bsd bsk bsm bsn bso bsr bss bst bsu bta btb btd btk btm btn bto btr bts btt btu bua bub bud buk bum bun buo bur bus but buu daa dab dad dak dam dan dao dar das dat dau dba dbb dbd dbk dbm dbn dbo dbr dbs dbt dbu dda ddb ddd ddk ddm ddn ddo ddr dds ddt ddu dka dkb dkk dkm dko dkr dks dkt dku dma dmb dmd dmk dmm dmn dmo dmr dms dmt dmu dna dnb dnd dnk dnm dnn dno dnr dns dnt doa dob dod dok dom don doo dor dos dot dou dra drb drd drk drm drn dro drr drs drt dru dsa dsb dsd dsk dsm dsn dso dsr dss dst dsu dta dtb dtd dtk dtm dtn dto dtr dts dtt dtu dua dub dud duk dum dun duo dur dus dut k-t ka- kaa kab kad kak kam kan kao kar kas kat kau kba kbb kbd kbk kbm kbn kbo kbr kbs kbu kda kdb kdk kdm kdo kdr kds kdt kdu kkb kkk kkm kkn kkr kks kkt kku kma kmb kmd kmk kmm kmo kms kmt kmu kn- kna knd knk knm knn kno knr knt knu koa kob kod kok kom kon koo kor kos kot kou kra krd krk krn kro krr krs krt kru ksa ksb ksd ksk ksm ksn kso ksr kss kst ksu kta ktb ktk ktm ktn kto ktr kts ktt ktu kub kud kuk kum kun kur kus kut kuu m-o m-r maa mab mad mak mam man mao mar mas mat mau mba mbb mbd mbk mbm mbo mbr mbs mbt mbu mda mdb mdd mdk mdm mdn mdo mdr mds mdt mdu mka mkb mkd mkk mkm mkn mko mkr mks mkt mku mma mmb mmd mmk mmm mmn mmo mmr mms mmt mmu mna mnb mnk mnm mnn mno mnr mns mnt mnu moa mob mod mok mom mon moo mor mos mot mou mra mrb mrd mrk mrm mrn mro mrr mrs mrt mru msa msb msd msk msm msn mso msr mss mst msu mta mtb mtd mtk mtm mtn mto mtr mts mtt mtu mua mub mud muk mum mun mur mus mut muu naa nab nad nak nam nan nao nar nas nat nau nba nbb nbd nbk nbm nbn nbo nbr nbs nbt nbu nda ndb ndd ndk ndm ndn ndo ndr nds ndt ndu nka nkk nkm nkn nko nkr nks nkt nku nma nmb nmd nmk nmm nmn nmo nmr nms nmt nmu nna nnb nnk nnm nnn nno nns nnt nnu no- noa nob nod nok nom non noo nor nos not nou nra nrb nrd nrk nrm nrn nro nrr nrs nrt nru nsa nsb nsd nsk nsm nsn nso nsr nss nst nsu nta ntb ntd ntk ntm ntn nto ntr nts ntt ntu nua nub nud nuk num nun nuo nur nus nut nuu oaa oab oad oak oam oan oao oar oas oat oau ob- oba obb obd obk obm obn obo obr obs obt obu oda odb odd odm odn odo odr ods odt odu oka okb okd okk oko okr oks oku om- oma omb omd omm omn omo omr oms omt omu on- ona onb ond onk onn ono onr ons ont onu oo- ooa oob ood ook oom oon ooo oor oos oot or- ora orb ord ork orm orn oro orr ors ort oru os- osa osb osd osk osm osn oso osr oss ost osu ot- ota otb otd otk otm otn oto otr ots ott otu ou- oua oud ouk oum oun ouo our ous out ra- raa rab rad rak ram ran rao rar ras rat rau rba rbb rbd rbk rbm rbn rbo rbr rbs rbt rbu rda rdb rdd rdm rdn rdo rdr rds rdt rdu rkb rkk rkm rko rks rkt rku rma rmb rmd rmm rmn rmo rmr rms rmt rna rnb rnd rnm rnn rno rnr rns rnt rnu roa rob rod rok rom ron roo ror ros rot rou rra rrb rrd rrk rrm rrn rrr rrs rrt rru rsa rsb rsd rsk rsm rsn rso rsr rss rst rsu rta rtb rtd rtk rtm rtn rto rtr rts rtt rtu rua rub rud ruk rum run ruo rur rus rut ruu saa sab sad sak sam san sao sar sas sat sau sba sbb sbd sbk sbm sbn sbo sbr sbs sbt sbu sda sdb sdd sdk sdm sdn sdo sdr sds sdt sdu sk- ska skb skd skk skm sko skr sks skt sku sma smb smd smk smm smn smo smr sms smt smu sna snb