a-a a-b a-i a-t aaa aab aai aam aao aas aat aau ab- aba abb abi abm abo abs abt abu ai- aia aib aii aim aio ais ait aiu ama amb ami amm amo ams amt amu aoa aob aoi aom aoo aos aot aou as- asa asb asi asm aso ass ast asu at- ata atb ati atm ato ats att atu au- aua aub aui aum auo aus aut b-u baa bab bai bam bao bas bat bau bba bbb bbi bbm bbo bbs bbt bbu bi- bia bib bii bim bio bis bit biu bma bmb bmi bmm bmo bms bmt bmu boa bob boi bom boo bos bot bou bsa bsb bsi bsm bso bss bst bsu bta btb bti btm bto bts btt btu bua bub bui bum buo bus but buu ia- iaa iab iai iam iao ias iat iau iba ibb ibi ibm ibo ibs ibt ibu iia iib iii iim iio iis iit iiu im- ima imb imi imm imo ims imt imu io- ioa iob ioi iom ioo ios iot iou is- isa isb isi ism iso iss ist isu ita itb iti itm ito its itt itu iu- iua iub iui ium ius iut m-o maa mab mai mam mao mas mat mau mba mbb mbi mbm mbo mbs mbt mbu mi- mia mib mii mim mio mis mit miu mma mmb mmi mmm mmo mms mmt mmu moa mob moi mom moo mos mot mou msa msb msi msm mso mss mst msu mta mtb mti mtm mto mts mtt mtu mua mub mui mum mus mut muu o-i oaa oab oai oam oao oas oat oau ob- oba obb obi obm obo obs obt obu oia oib oii oim oio ois oit oiu om- oma omb omi omm omo oms omt omu oo- ooa oob ooi oom ooo oos oot os- osa osb osi osm oso oss ost osu ot- ota otb oti otm oto ots ott otu ou- oua oui oum ouo ous out saa sab sai sam sao sas sat sau sba sbb sbi sbm sbo sbs sbt sbu sia sib sii sim sio sis sit siu sma smb smi smm smo sms smt smu soa sob soi som soo sos sot sou ss- ssa ssb ssi ssm sso sss sst ssu sta stb sti stm sto sts stt stu sua sub sui sum suo sus sut suu taa tab tai tam tao tas tat tau tba tbb tbi tbm tbo tbs tbt tbu tia tib tii tim tio tis tit tiu tma tmb tmi tmm tmo tms tmt tmu to- toa tob toi tom too tos tot tou tsa tsb tsi tsm tso tss tst tsu tta ttb tti ttm tto tts ttt ttu tua tub tui tum tuo tus tut tuu ua- uaa uab uai uam uao uas uat uau uba ubb ubi ubo ubs ubt ubu uia uib uii uim uio uis uit uiu um- uma umb umi umm umo ums umt umu uoa uob uom uoo uos uot usa usb usi usm uso uss ust usu uta utb uti utm uto uts utt utu uua uum uus uut uuu