-er bbb bbe bbg bbi bbm bbr bbs bbt be- beb bee beg bei bem ber bes bet bgb bge bgg bgi bgm bgr bgs bgt bi- bib bie big bii bim bir bis bit bmb bme bmg bmi bmm bmr bms bmt brb bre brg bri brm brr brs brt bsb bse bsg bsi bsm bsr bss bst btb bte btg bti btm btr bts btt ebb ebe ebg ebi ebm ebr ebs ebt eeb eee eeg eem eer ees eet egb ege egg egi egm egr egs egt eib eie eig eii eim eir eis eit em- emb eme emg emi emm emr ems emt erb ere erg eri erm err ers ert es- esb ese esg esi esm esr ess est etb ete etg eti etm etr ets ett gbe gbg gbi gbm gbr gbs gbt ge- geb gee geg gei gem ger ges get ggb ggg ggi ggm ggr ggs ggt gib gie gig gii gim gir gis git gmb gme gmg gmi gmm gmr gms gmt grb gre grg gri grm grr grs grt gsb gse gsg gsi gsm gsr gss gst gtb gte gtg gti gtm gtr gts gtt ibb ibe ibg ibi ibm ibr ibs ibt ie- iee ieg iei iem ier ies iet igb ige igg igi igm igr igs igt iib iie iii iim iir iis iit im- imb ime img imi imm ims imt ir- irb ire irg iri irm irr irs irt is- isb ise isg isi ism isr iss ist itb ite itg iti itm its itt m-r mbb mbe mbg mbi mbm mbr mbs mbt meb mee meg mei mem mer mes met mgb mge mgi mgm mgr mgs mgt mi- mib mie mig mii mim mir mis mit mmb mme mmg mmi mmm mmr mms mmt mrb mre mrg mri mrm mrr mrs mrt msb mse msg msi msm msr mss mst mtb mte mtg mti mtm mtr mts mtt rbb rbe rbg rbi rbm rbr rbs rbt re- reb ree reg rei rem rer res ret rgb rge rgg rgi rgr rgs rgt rib rie rig rii rim rir ris rit rmb rme rmg rmi rmm rmr rms rmt rrb rrg rri rrm rrr rrs rrt rsb rse rsg rsi rsm rsr rss rst rtb rte rtg rti rtm rtr rts rtt sbb sbe sbg sbi sbm sbr sbs sbt se- seb see seg sei sem ser ses set sgb sge sgg sgi sgm sgr sgs sgt sib sie sig sii sim sir sis sit smb sme smg smi smm smr sms smt sr- srb sre srg sri srm srr srs srt ss- ssb sse ssg ssi ssm ssr sss sst stb ste stg sti stm str sts stt tbb tbe tbg tbi tbm tbr tbs tbt te- teb tee teg tei tem ter tes tet tgb tge tgg tgi tgm tgr tgs tgt tib tie tig tii tim tir tis tit tmb tme tmg tmi tmm tmr tms tmt trb tre trg tri trm trr trs trt tsb tse tsg tsi tsm tsr tss tst ttb tte ttg tti ttm ttr tts ttt