a-a a-b a-t aaa aab aad aam aan aao aar aat aau ab- aba abb abd abm abn abo abr abt abu ad- ada adb add adm adn ado adr adt adu ama amb amd amm amn amo amr amt amu an- ana anb and anm ann ano anr ant anu aoa aob aod aom aon aoo aor aot aou ar- ara arb ard arm arn aro arr art aru at- ata atb atd atm atn ato atr att atu au- aua aub aud aum aun auo aur aut b-u baa bab bad bam ban bao bar bat bau bba bbb bbd bbm bbn bbo bbr bbt bbu bda bdb bdd bdm bdo bdr bdt bdu bma bmb bmd bmm bmn bmo bmr bmt bmu bna bnb bnd bnn bno bnr bnt bnu boa bob bod bom bon boo bor bot bou bra brb brd brm brn bro brr brt bru bta btb btd btm btn bto btr btt btu bua bub bud bum bun buo bur but buu daa dab dad dam dan dao dar dat dau dba dbb dbd dbm dbn dbo dbr dbt dbu dda ddb ddd ddm ddn ddo ddr ddt ddu dma dmb dmd dmm dmn dmo dmr dmt dmu dna dnb dnd dnm dnn dno dnr dnt doa dob dod dom don doo dor dot dou dra drb drd drm drn dro drr drt dru dta dtb dtd dtm dtn dto dtr dtt dtu dua dub dud dum dun duo dur dut m-o m-r maa mab mad mam man mao mar mat mau mba mbb mbd mbm mbo mbr mbt mbu mda mdb mdd mdm mdn mdo mdr mdt mdu mma mmb mmd mmm mmn mmo mmr mmt mmu mna mnb mnm mnn mno mnr mnt mnu moa mob mod mom mon moo mor mot mou mra mrb mrd mrm mrn mro mrr mrt mru mta mtb mtd mtm mtn mto mtr mtt mtu mua mub mud mum mun mur mut muu naa nab nad nam nan nao nar nat nau nba nbb nbd nbm nbn nbo nbr nbt nbu nda ndb ndd ndm ndn ndo ndr ndt ndu nma nmb nmd nmm nmn nmo nmr nmt nmu nna nnb nnm nnn nno nnt nnu no- noa nob nod nom non noo nor not nou nra nrb nrd nrm nrn nro nrr nrt nru nta ntb ntd ntm ntn nto ntr ntt ntu nua nub nud num nun nuo nur nut nuu oaa oab oad oam oan oao oar oat oau ob- oba obb obd obm obn obo obr obt obu oda odb odd odm odn odo odr odt odu om- oma omb omd omm omn omo omr omt omu on- ona onb ond onn ono onr ont onu oo- ooa oob ood oom oon ooo oor oot or- ora orb ord orm orn oro orr ort oru ot- ota otb otd otm otn oto otr ott otu ou- oua oud oum oun ouo our out ra- raa rab rad ram ran rao rar rat rau rba rbb rbd rbm rbn rbo rbr rbt rbu rda rdb rdd rdm rdn rdo rdr rdt rdu rma rmb rmd rmm rmn rmo rmr rmt rna rnb rnd rnm rnn rno rnr rnt rnu roa rob rod rom ron roo ror rot rou rra rrb rrd rrm rrn rrr rrt rru rta rtb rtd rtm rtn rto rtr rtt rtu rua rub rud rum run ruo rur rut ruu taa tab tad tam tan tao tar tat tau tba tbb tbd tbm tbn tbo tbr tbt tbu tda tdb tdd tdm tdn tdo tdr tdt tdu tma tmb tmd tmm tmn tmo tmr tmt tmu tna tnb tnd tnm tnn tno tnr tnt to- toa tob tod tom ton too tor tot tou tra trb trd trm trn tro trr trt tru tta ttb ttd ttm ttn tto ttr ttt ttu tua tub tud tum tun tuo tur tut tuu ua- uaa uab uad uam uan uao uar uat uau uba ubb ubn ubo ubr ubt ubu uda udb udd udm udn udo udr udt udu um- uma umb umd umm umn umo umr umt umu un- una unb und unm unn uno unr unt unu uoa uob uod uom uon uoo uor uot ur- ura urb urd urm urn uro urr urt uru uta utb utd utm utn uto utr utt utu uua uum uun uur uut uuu