-er bbb bbe bbf bbi bbl bbm bbr bbs bbt be- beb bee bef bei bel bem ber bes bet bfb bfe bff bfi bfl bfm bfr bfs bft bi- bib bie bif bii bil bim bir bis bit blb ble blf bli bll blm blr bls blt bmb bme bmf bmi bml bmm bmr bms bmt brb bre brf bri brl brm brr brs brt bsb bse bsf bsi bsl bsm bsr bss bst btb bte btf bti btl btm btr bts btt ebb ebe ebf ebi ebl ebm ebr ebs ebt eeb eee eef eel eem eer ees eet ef- efb efe eff efi efl efm efr efs eft eib eie eif eii eil eim eir eis eit elb ele elf eli ell elm elr els elt em- emb eme emf emi eml emm emr ems emt erb ere erf eri erl erm err ers ert es- esb ese esf esi esl esm esr ess est etb ete etf eti etl etm etr ets ett fbb fbe fbf fbi fbl fbm fbr fbs fbt feb fee fef fei fel fem fer fes fet ffe fff ffi ffl ffm ffr ffs fft fib fie fif fii fil fim fir fis fit flb fle flf fli fll flm flr fls flt fmb fme fmf fmi fml fmm fmr fms fmt frb fre frf fri frl frm frr frs frt fsb fse fsf fsi fsl fsm fsr fss fst ftb fte ftf fti ftl ftm ftr fts ftt i-f ibb ibe ibf ibi ibl ibm ibr ibs ibt ie- iee ief iei iel iem ier ies iet ifb ife iff ifi ifl ifm ifr ifs ift iib iie iif iii iil iim iir iis iit il- ilb ile ilf ili ill ilm ilr ils ilt im- imb ime imf imi iml imm ims imt ir- irb ire irf iri irl irm irr irs irt is- isb ise isf isi isl ism isr iss ist itb ite itf iti itl itm its itt lbb lbe lbf lbi lbl lbm lbr lbs lbt leb lee lef lei lel lem ler les let lfb lfe lff lfi lfl lfm lfr lfs lft lib lie lif lii lil lim lir lis lit llb lle llf lli lll llm llr lls llt lmb lme lmf lmi lml lmm lmr lms lmt lrb lrf lri lrm lrr lrs lrt lsb lse lsf lsi lsl lsm lsr lss lst ltb lte ltf lti ltl ltm ltr lts ltt m-f m-r mbb mbe mbf mbi mbl mbm mbr mbs mbt meb mee mef mei mel mem mer mes met mfb mfe mff mfi mfl mfm mfr mfs mft mi- mib mie mif mii mil mim mir mis mit mlb mle mlf mli mll mlm mlr mls mlt mmb mme mmf mmi mml mmm mmr mms mmt mrb mre mrf mri mrl mrm mrr mrs mrt msb mse msf msi msl msm msr mss mst mtb mte mtf mti mtl mtm mtr mts mtt rbb rbe rbf rbi rbl rbm rbr rbs rbt re- reb ree ref rei rel rem rer res ret rfb rfe rff rfi rfl rfm rfr rfs rft rib rie rif rii ril rim rir ris rit rle rlf rli rll rlm rlr rls rlt rmb rme rmf rmi rml rmm rmr rms rmt rrb rrf rri rrl rrm rrr rrs rrt rsb rse rsf rsi rsl rsm rsr rss rst rtb rte rtf rti rtl rtm rtr rts rtt sbb sbe sbf sbi sbl sbm sbr sbs sbt se- seb see sef sei sel sem ser ses set sfb sfe sff sfi sfl sfm sfr sfs sft sib sie sif sii sil sim sir sis sit slb sle slf sli sll slm slr sls slt smb sme smf smi sml smm smr sms smt sr- srb sre srf sri srl srm srr srs srt ss- ssb sse ssf ssi ssl ssm ssr sss sst stb ste stf sti stl stm str sts stt tbb tbe tbf tbi tbl tbm tbr tbs tbt te- teb tee tef tei tel tem ter tes tet tfb tfe tff tfi tfl tfm tfr tfs tft tib tie tif tii til tim tir tis tit tle tlf tli tll tlm tlr tls tlt tmb tme tmf tmi tml tmm tmr tms tmt trb tre trf tri trl trm trr trs trt tsb tse tsf tsi tsl tsm tsr tss tst ttb tte ttf tti ttl ttm ttr tts ttt