-th b-u bbb bbh bbm bbs bbt bbu bhb bhh bhm bhs bht bhu bmb bmh bmm bms bmt bmu bsb bsh bsm bss bst bsu btb bth btm bts btt btu bub buh bum bus but buu hbb hbh hbm hbs hbt hbu hhb hhh hhm hhs hht hhu hmb hmh hmm hms hmt hmu hsb hsh hsm hss hst hsu htb hth htm hts htt hub huh hum hus hut huu mbb mbh mbm mbs mbt mbu mhh mhm mhs mht mhu mmb mmh mmm mms mmt mmu msb msh msm mss mst msu mtb mth mtm mts mtt mtu mub muh mum mus mut muu sbb sbh sbm sbs sbt sbu sh- shb shh shm shs sht shu smb smh smm sms smt smu ss- ssb ssh ssm sss sst ssu stb sth stm sts stt stu sub suh sum sus sut suu tbb tbh tbm tbs tbt tbu th- thb thh thm ths tht thu tmb tmh tmm tms tmt tmu tsb tsh tsm tss tst tsu ttb tth ttm tts ttt ttu tub tuh tum tus tut tuu ubb ubh ubs ubt ubu uhb uhh uhm uhs uht uhu um- umb umh umm ums umt umu usb ush usm uss ust usu utb uth utm uts utt utu uum uus uut uuu