-er bbb bbe bbg bbi bbl bbm bbr bbs bbt be- beb bee beg bei bel bem ber bes bet bgb bge bgg bgi bgl bgm bgr bgs bgt bi- bib bie big bii bil bim bir bis bit blb ble blg bli bll blm blr bls blt bmb bme bmg bmi bml bmm bmr bms bmt brb bre brg bri brl brm brr brs brt bsb bse bsg bsi bsl bsm bsr bss bst btb bte btg bti btl btm btr bts btt ebb ebe ebg ebi ebl ebm ebr ebs ebt eeb eee eeg eel eem eer ees eet egb ege egg egi egl egm egr egs egt eib eie eig eii eil eim eir eis eit elb ele elg eli ell elm elr els elt em- emb eme emg emi eml emm emr ems emt erb ere erg eri erl erm err ers ert es- esb ese esg esi esl esm esr ess est etb ete etg eti etl etm etr ets ett gbe gbg gbi gbl gbm gbr gbs gbt ge- geb gee geg gei gel gem ger ges get ggb ggg ggi ggm ggr ggs ggt gib gie gig gii gil gim gir gis git glb gle glg gli gll glm glr gls glt gmb gme gmg gmi gml gmm gmr gms gmt grb gre grg gri grl grm grr grs grt gsb gse gsg gsi gsl gsm gsr gss gst gtb gte gtg gti gtl gtm gtr gts gtt ibb ibe ibg ibi ibl ibm ibr ibs ibt ie- iee ieg iei iel iem ier ies iet igb ige igg igi igl igm igr igs igt iib iie iii iil iim iir iis iit il- ilb ile ilg ili ill ilm ilr ils ilt im- imb ime img imi iml imm ims imt ir- irb ire irg iri irl irm irr irs irt is- isb ise isg isi isl ism isr iss ist itb ite itg iti itl itm its itt lbb lbe lbg lbi lbl lbm lbr lbs lbt leb lee leg lei lel lem ler les let lgb lge lgg lgi lgl lgm lgr lgs lgt lib lie lig lii lil lim lir lis lit llb lle llg lli lll llm llr lls llt lmb lme lmg lmi lml lmm lmr lms lmt lrb lrg lri lrm lrr lrs lrt lsb lse lsg lsi lsl lsm lsr lss lst ltb lte ltg lti ltl ltm ltr lts ltt m-r mbb mbe mbg mbi mbl mbm mbr mbs mbt meb mee meg mei mel mem mer mes met mgb mge mgi mgl mgm mgr mgs mgt mi- mib mie mig mii mil mim mir mis mit mlb mle mlg mli mll mlm mlr mls mlt mmb mme mmg mmi mml mmm mmr mms mmt mrb mre mrg mri mrl mrm mrr mrs mrt msb mse msg msi msl msm msr mss mst mtb mte mtg mti mtl mtm mtr mts mtt rbb rbe rbg rbi rbl rbm rbr rbs rbt re- reb ree reg rei rel rem rer res ret rgb rge rgg rgi rgr rgs rgt rib rie rig rii ril rim rir ris rit rle rlg rli rll rlm rlr rls rlt rmb rme rmg rmi rml rmm rmr rms rmt rrb rrg rri rrl rrm rrr rrs rrt rsb rse rsg rsi rsl rsm rsr rss rst rtb rte rtg rti rtl rtm rtr rts rtt sbb sbe sbg sbi sbl sbm sbr sbs sbt se- seb see seg sei sel sem ser ses set sgb sge sgg sgi sgl sgm sgr sgs sgt sib sie sig sii sil sim sir sis sit slb sle slg sli sll slm slr sls slt smb sme smg smi sml smm smr sms smt sr- srb sre srg sri srl srm srr srs srt ss- ssb sse ssg ssi ssl ssm ssr sss sst stb ste stg sti stl stm str sts stt tbb tbe tbg tbi tbl tbm tbr tbs tbt te- teb tee teg tei tel tem ter tes tet tgb tge tgg tgi tgl tgm tgr tgs tgt tib tie tig tii til tim tir tis tit tle tlg tli tll tlm tlr tls tlt tmb tme tmg tmi tml tmm tmr tms tmt trb tre trg tri trl trm trr trs trt tsb tse tsg tsi tsl tsm tsr tss tst ttb tte ttg tti ttl ttm ttr tts ttt