b-u bbb bbi bbm bbq bbs bbt bbu bi- bib bii bim bis bit biu bmb bmi bmm bmq bms bmt bmu bqt bsb bsi bsm bss bst bsu btb bti btm btq bts btt btu bub bui bum bus but buu ibb ibi ibm ibs ibt ibu iib iii iim iis iit iiu im- imb imi imm ims imt imu iqs iqt iqu is- isb isi ism isq iss ist isu itb iti itm itq its itt itu iu- iub iui ium ius iut mbb mbi mbm mbq mbs mbt mbu mi- mib mii mim miq mis mit miu mmb mmi mmm mms mmt mmu mqb mqi mqt msb msi msm msq mss mst msu mtb mti mtm mts mtt mtu mub mui mum mus mut muu qbq qbs qis qit qiu qmi qms qmu qqq qqu qsi qsm qst qti qtm qtq qts qu- qui qum qus qut sbb sbi sbm sbq sbs sbt sbu sib sii sim siq sis sit siu smb smi smm sms smt smu sqi sqm sqq sqs ss- ssb ssi ssm ssq sss sst ssu stb sti stm stq sts stt stu sub sui sum suq sus sut suu tbb tbi tbm tbs tbt tbu tib tii tim tis tit tiu tmb tmi tmm tmq tms tmt tmu tqm tsb tsi tsm tsq tss tst tsu ttb tti ttm tts ttt ttu tub tui tum tus tut tuu ubb ubi ubs ubt ubu uib uii uim uiq uis uit uiu um- umb umi umm ums umt umu usb usi usm uss ust usu utb uti utm uts utt utu uum uus uut uuu