-er -ol bbb bbe bbf bbi bbl bbo bbr bbs bbt be- beb bee bef bei bel beo ber bes bet bfb bfe bff bfi bfl bfo bfr bfs bft bi- bib bie bif bii bil bio bir bis bit blb ble blf bli bll blo blr bls blt bob boe bof boi bol boo bor bos bot brb bre brf bri brl bro brr brs brt bsb bse bsf bsi bsl bso bsr bss bst btb bte btf bti btl bto btr bts btt ebb ebe ebf ebi ebl ebo ebr ebs ebt eeb eee eef eel eeo eer ees eet ef- efb efe eff efi efl efo efr efs eft eib eie eif eii eil eio eir eis eit elb ele elf eli ell elo elr els elt eo- eob eoe eof eoi eol eoo eor eos eot erb ere erf eri erl ero err ers ert es- esb ese esf esi esl eso esr ess est etb ete etf eti etl eto etr ets ett fbb fbe fbf fbi fbl fbo fbr fbs fbt feb fee fef fei fel feo fer fes fet ffe fff ffi ffl ffo ffr ffs fft fib fie fif fii fil fir fis fit flb fle flf fli fll flo flr fls flt fob foe fof foi fol foo for fos fot frb fre frf fri frl fro frr frs frt fsb fse fsf fsi fsl fso fsr fss fst ftb fte ftf fti ftl fto ftr fts ftt i-f ibb ibe ibf ibi ibl ibo ibr ibs ibt ie- iee ief iei iel ier ies iet ifb ife iff ifi ifl ifo ifr ifs ift iib iie iif iii iil iio iir iis iit il- ilb ile ilf ili ill ilo ilr ils ilt io- iob ioe iof ioi iol ioo ior ios iot ir- irb ire irf iri irl iro irr irs irt is- isb ise isf isi isl iso isr iss ist itb ite itf iti itl ito its itt lbb lbe lbf lbi lbl lbo lbr lbs lbt leb lee lef lei lel leo ler les let lfb lfe lff lfi lfl lfo lfr lfs lft lib lie lif lii lil lio lir lis lit llb lle llf lli lll llo llr lls llt lob loe lof loi lol loo lor los lot lrb lrf lri lro lrr lrs lrt lsb lse lsf lsi lsl lso lsr lss lst ltb lte ltf lti ltl lto ltr lts ltt o-i ob- obb obe obf obi obl obo obr obs obt oeb oee oef oei oel oeo oer oes oet of- ofb ofe off ofi ofl ofo ofr ofs oft oib oie oif oii oil oio oir ois oit olb ole olf oli oll olo ols olt oo- oob oof ooi ool ooo oor oos oot or- orb ore orf ori orl oro orr ors ort os- osb ose osf osi osl oso osr oss ost ot- otb ote otf oti otl oto otr ots ott rbb rbe rbf rbi rbl rbo rbr rbs rbt re- reb ree ref rei rel reo rer res ret rfb rfe rff rfi rfl rfo rfr rfs rft rib rie rif rii ril rio rir ris rit rle rlf rli rll rlo rlr rls rlt rob roe rof roi rol roo ror ros rot rrb rrf rri rrl rrr rrs rrt rsb rse rsf rsi rsl rso rsr rss rst rtb rte rtf rti rtl rto rtr rts rtt sbb sbe sbf sbi sbl sbo sbr sbs sbt se- seb see sef sei sel seo ser ses set sfb sfe sff sfi sfl sfo sfr sfs sft sib sie sif sii sil sio sir sis sit slb sle slf sli sll slo slr sls slt sob soe sof soi sol soo sor sos sot sr- srb sre srf sri srl sro srr srs srt ss- ssb sse ssf ssi ssl sso ssr sss sst stb ste stf sti stl sto str sts stt tbb tbe tbf tbi tbl tbo tbr tbs tbt te- teb tee tef tei tel teo ter tes tet tfb tfe tff tfi tfl tfo tfr tfs tft tib tie tif tii til tio tir tis tit tle tlf tli tll tlo tlr tls tlt to- tob toe tof toi tol too tor tos tot trb tre trf tri trl tro trr trs trt tsb tse tsf tsi tsl tso tsr tss tst ttb tte ttf tti ttl tto ttr tts ttt