b-u bbb bbi bbm bbo bbq bbs bbt bbu bi- bib bii bim bio bis bit biu bmb bmi bmm bmo bmq bms bmt bmu bob boi bom boo boq bos bot bou bqt bsb bsi bsm bso bss bst bsu btb bti btm bto btq bts btt btu bub bui bum buo bus but buu ibb ibi ibm ibo ibs ibt ibu iib iii iim iio iis iit iiu im- imb imi imm imo ims imt imu io- iob ioi iom ioo ios iot iou iqs iqt iqu is- isb isi ism iso isq iss ist isu itb iti itm ito itq its itt itu iu- iub iui ium ius iut m-o mbb mbi mbm mbo mbq mbs mbt mbu mi- mib mii mim mio miq mis mit miu mmb mmi mmm mmo mms mmt mmu mob moi mom moo mos mot mou mqb mqi mqt msb msi msm mso msq mss mst msu mtb mti mtm mto mts mtt mtu mub mui mum mus mut muu o-i ob- obb obi obm obo obs obt obu oib oii oim oio ois oit oiu om- omb omi omm omo oms omt omu oo- oob ooi oom ooo oos oot oqb oqo os- osb osi osm oso osq oss ost osu ot- otb oti otm oto ots ott otu ou- oui oum ouo ous out qbq qbs qio qis qit qiu qmi qms qmu qoi qom qoo qos qqq qqu qsi qsm qso qst qti qtm qto qtq qts qu- qui qum quo qus qut sbb sbi sbm sbo sbq sbs sbt sbu sib sii sim sio siq sis sit siu smb smi smm smo sms smt smu sob soi som soo soq sos sot sou sqi sqm sqq sqs ss- ssb ssi ssm sso ssq sss sst ssu stb sti stm sto stq sts stt stu sub sui sum suo suq sus sut suu tbb tbi tbm tbo tbs tbt tbu tib tii tim tio tis tit tiu tmb tmi tmm tmo tmq tms tmt tmu to- tob toi tom too toq tos tot tou tqm tqo tsb tsi tsm tso tsq tss tst tsu ttb tti ttm tto tts ttt ttu tub tui tum tuo tus tut tuu ubb ubi ubo ubs ubt ubu uib uii uim uio uiq uis uit uiu um- umb umi umm umo ums umt umu uob uom uoo uos uot usb usi usm uso uss ust usu utb uti utm uto uts utt utu uum uus uut uuu