-er b-u bbb bbe bbg bbm bbr bbs bbt bbu be- beb bee beg bem ber bes bet beu bgb bge bgg bgm bgr bgs bgt bgu bmb bme bmg bmm bmr bms bmt bmu brb bre brg brm brr brs brt bru bsb bse bsg bsm bsr bss bst bsu btb bte btg btm btr bts btt btu bub bue bug bum bur bus but buu ebb ebe ebg ebm ebr ebs ebt ebu eeb eee eeg eem eer ees eet egb ege egg egm egr egs egt egu em- emb eme emg emm emr ems emt emu erb ere erg erm err ers ert eru es- esb ese esg esm esr ess est esu etb ete etg etm etr ets ett etu eu- eub eue eug eur eus eut gbe gbg gbm gbr gbs gbt gbu ge- geb gee geg gem ger ges get geu ggb ggg ggm ggr ggs ggt ggu gmb gme gmg gmm gmr gms gmt grb gre grg grm grr grs grt gru gsb gse gsg gsm gsr gss gst gsu gtb gte gtg gtm gtr gts gtt gtu gu- gub gue gug gum gur gus gut guu m-r mbb mbe mbg mbm mbr mbs mbt mbu meb mee meg mem mer mes met meu mgb mge mgm mgr mgs mgt mgu mmb mme mmg mmm mmr mms mmt mmu mrb mre mrg mrm mrr mrs mrt mru msb mse msg msm msr mss mst msu mtb mte mtg mtm mtr mts mtt mtu mub mue mug mum mur mus mut muu rbb rbe rbg rbm rbr rbs rbt rbu re- reb ree reg rem rer res ret reu rgb rge rgg rgr rgs rgt rmb rme rmg rmm rmr rms rmt rrb rrg rrm rrr rrs rrt rru rsb rse rsg rsm rsr rss rst rsu rtb rte rtg rtm rtr rts rtt rtu rub rue rug rum rur rus rut ruu sbb sbe sbg sbm sbr sbs sbt sbu se- seb see seg sem ser ses set seu sgb sge sgg sgm sgr sgs sgt sgu smb sme smg smm smr sms smt smu sr- srb sre srg srm srr srs srt ss- ssb sse ssg ssm ssr sss sst ssu stb ste stg stm str sts stt stu sub sue sug sum sur sus sut suu tbb tbe tbg tbm tbr tbs tbt tbu te- teb tee teg tem ter tes tet teu tgb tge tgg tgm tgr tgs tgt tgu tmb tme tmg tmm tmr tms tmt tmu trb tre trg trm trr trs trt tru tsb tse tsg tsm tsr tss tst tsu ttb tte ttg ttm ttr tts ttt ttu tub tue tug tum tur tus tut tuu ubb ube ubg ubr ubs ubt ubu ueb uee ueg uem uer ues uet ugb uge ugg ugm ugr ugs ugt ugu um- umb ume umg umm umr ums umt umu ur- urb ure urg urm urr urs urt uru usb use usg usm usr uss ust usu utb ute utm utr uts utt utu uue uug uum uur uus uut uuu