-th b-u bbb bbh bbm bbr bbs bbt bbu bhb bhh bhm bhr bhs bht bhu bmb bmh bmm bmr bms bmt bmu brb brh brm brr brs brt bru bsb bsh bsm bsr bss bst bsu btb bth btm btr bts btt btu bub buh bum bur bus but buu hbb hbh hbm hbr hbs hbt hbu hhb hhh hhm hhr hhs hht hhu hmb hmh hmm hmr hms hmt hmu hr- hrb hrh hrm hrr hrs hrt hru hsb hsh hsm hsr hss hst hsu htb hth htm htr hts htt hub huh hum hur hus hut huu m-r mbb mbh mbm mbr mbs mbt mbu mhh mhm mhr mhs mht mhu mmb mmh mmm mmr mms mmt mmu mrb mrh mrm mrr mrs mrt mru msb msh msm msr mss mst msu mtb mth mtm mtr mts mtt mtu mub muh mum mur mus mut muu rbb rbh rbm rbr rbs rbt rbu rh- rhb rhh rhm rhr rhs rht rhu rmb rmh rmm rmr rms rmt rrb rrh rrm rrr rrs rrt rru rsb rsh rsm rsr rss rst rsu rtb rtm rtr rts rtt rtu rub ruh rum rur rus rut ruu sbb sbh sbm sbr sbs sbt sbu sh- shb shh shm shr shs sht shu smb smh smm smr sms smt smu sr- srb srh srm srr srs srt ss- ssb ssh ssm ssr sss sst ssu stb sth stm str sts stt stu sub suh sum sur sus sut suu tbb tbh tbm tbr tbs tbt tbu th- thb thh thm thr ths tht thu tmb tmh tmm tmr tms tmt tmu trb trh trm trr trs trt tru tsb tsh tsm tsr tss tst tsu ttb tth ttm ttr tts ttt ttu tub tuh tum tur tus tut tuu ubb ubh ubr ubs ubt ubu uhb uhh uhm uhr uhs uht uhu um- umb umh umm umr ums umt umu ur- urb urm urr urs urt uru usb ush usm usr uss ust usu utb uth utm utr uts utt utu uum uur uus uut uuu