-er -ey bbb bbc bbe bbm bbr bbs bbt bby bcb bcc bce bcm bcr bcs bct bcy be- beb bec bee bem ber bes bet bey bmb bmc bme bmm bmr bms bmt brb bre brm brr brs brt bry bsb bsc bse bsm bsr bss bst bsy btb btc bte btm btr bts btt bty by- byc bye bym byr bys byt c-- cbb cbc cbe cbm cbr cbs cbt cby ccb ccc cce ccm ccr ccs cct ce- ceb cec cee cem cer ces cet cey cmb cmc cme cmm cmr cms cmt cmy crb crc cre crm crr crs crt cry csb csc cse csm csr css cst csy ctb ctc cte ctm ctr cts ctt cty cyb cyc cye cym cyr cys cyt ebb ebc ebe ebm ebr ebs ebt eby ec- ecb ecc ece ecm ecr ecs ect eeb eec eee eem eer ees eet eey em- emb emc eme emm emr ems emt erb erc ere erm err ers ert ery es- esb esc ese esm esr ess est esy etb etc ete etm etr ets ett ety eyc eye eym eyr eys eyt m-r mbb mbc mbe mbm mbr mbs mbt mc- mcb mcc mce mcm mcr mcs mct meb mec mee mem mer mes met mey mmb mmc mme mmm mmr mms mmt mrb mrc mre mrm mrr mrs mrt mry msb msc mse msm msr mss mst msy mtb mtc mte mtm mtr mts mtt my- myb myc mye mym myr mys myt rbb rbc rbe rbm rbr rbs rbt rcb rcc rce rcm rcr rcs rct re- reb rec ree rem rer res ret rey rmb rmc rme rmm rmr rms rmt rrb rrc rrm rrr rrs rrt rsb rsc rse rsm rsr rss rst rtb rtc rte rtm rtr rts rtt rty ry- ryc rye rym ryr rys ryy sbb sbc sbe sbm sbr sbs sbt sby scb scc sce scm scr scs sct se- seb sec see sem ser ses set sey smb smc sme smm smr sms smt smy sr- srb src sre srm srr srs srt sry ss- ssb ssc sse ssm ssr sss sst stb stc ste stm str sts stt sty sy- syb syc sye sym syr sys syt tbb tbc tbe tbm tbr tbs tbt tcb tcc tce tcm tcr tcs tct te- teb tec tee tem ter tes tet tey tmb tmc tme tmm tmr tms tmt tmy trb trc tre trm trr trs trt try tsb tsc tse tsm tsr tss tst tsy ttb ttc tte ttm ttr tts ttt tty tyc tye tym tyr tys tyt ybc ybe ybm ybr ybs yby ycc yce ycs ycy yeb yec yee yem yer yes yet yey ymc yme ymm yms ymt yrc yre yrs yrt ysb ysc yse ysm ysr yss yst ysy ytc yte ytm ytr yts ytt yyb yyc yye yys yyt yyy