a-a a-b a-c a-t aaa aab aac aam aao aas aat aau aay ab- aba abb abc abm abo abs abt abu aby ac- aca acb acc acm aco acs act acu acy ama amb amc amm amo ams amt amu amy aoa aob aoc aom aoo aos aot aou as- asa asb asc asm aso ass ast asu asy at- ata atb atc atm ato ats att atu au- aua aub auc aum auo aus aut ay- aya ayc ayo ays ayt ayu b-u baa bab bac bam bao bas bat bau bay bba bbb bbc bbm bbo bbs bbt bbu bby bca bcb bcc bcm bco bcs bct bcu bcy bma bmb bmc bmm bmo bms bmt bmu boa bob boc bom boo bos bot bou boy bsa bsb bsc bsm bso bss bst bsu bsy bta btb btc btm bto bts btt btu bty bua bub buc bum buo bus but buu buy by- bya byc bym byo bys byt byu c-- caa cab cac cam cao cas cat cau cay cba cbb cbc cbm cbo cbs cbt cbu cby cca ccb ccc ccm cco ccs cct ccu cma cmb cmc cmm cmo cms cmt cmu cmy co- coa cob coc com coo cos cot cou coy csa csb csc csm cso css cst csu csy cta ctb ctc ctm cto cts ctt ctu cty cua cub cuc cum cuo cus cut cuu cuy cya cyb cyc cym cyo cys cyt m-o maa mab mac mam mao mas mat mau may mba mbb mbc mbm mbo mbs mbt mbu mc- mca mcb mcc mcm mco mcs mct mcu mma mmb mmc mmm mmo mms mmt mmu moa mob moc mom moo mos mot mou moy msa msb msc msm mso mss mst msu msy mta mtb mtc mtm mto mts mtt mtu mua mub muc mum mus mut muu muy my- mya myb myc mym myo mys myt myu oaa oab oac oam oao oas oat oau ob- oba obb obc obm obo obs obt obu oby oc- oca ocb occ ocm oco ocs oct ocu om- oma omb omc omm omo oms omt omu omy oo- ooa oob ooc oom ooo oos oot os- osa osb osc osm oso oss ost osu ot- ota otb otc otm oto ots ott otu ou- oua ouc oum ouo ous out oya oyo oys saa sab sac sam sao sas sat sau say sba sbb sbc sbm sbo sbs sbt sbu sby sca scb scc scm sco scs sct scu sma smb smc smm smo sms smt smu smy soa sob soc som soo sos sot sou soy ss- ssa ssb ssc ssm sso sss sst ssu sta stb stc stm sto sts stt stu sty sua sub suc sum suo sus sut suu suy sy- sya syb syc sym sys syt syu taa tab tac tam tao tas tat tau tay tba tbb tbc tbm tbo tbs tbt tbu tca tcb tcc tcm tco tcs tct tcu tma tmb tmc tmm tmo tms tmt tmu tmy to- toa tob toc tom too tos tot tou toy tsa tsb tsc tsm tso tss tst tsu tsy tta ttb ttc ttm tto tts ttt ttu tty tua tub tuc tum tuo tus tut tuu tuy tya tyc tym tyo tys tyt ua- uaa uab uac uam uao uas uat uau uay uba ubb ubc ubo ubs ubt ubu uby uca ucb ucc ucm uco ucs uct ucu um- uma umb umc umm umo ums umt umu uoa uob uoc uom uoo uos uot usa usb usc usm uso uss ust usu uta utb utc utm uto uts utt utu uty uua uuc uum uus uut uuu uyc uyo uys uyu yaa yab yac yam yao yas yat yau yay ybc ybm ybs yby yca ycc yco ycs ycu ycy yma ymc ymm ymo yms ymt yob yoc yom yoo yos yot you yoy ysa ysb ysc ysm yso yss yst ysu ysy yta ytc ytm yto yts ytt ytu yua yum yuo yus yut yuu yuy yyb yyc yys yyt yyu yyy