-er -ol bbb bbd bbe bbf bbi bbl bbo bbr bbs bdb bdd bde bdf bdi bdl bdo bdr bds be- beb bed bee bef bei bel beo ber bes bfb bfd bfe bff bfi bfl bfo bfr bfs bi- bib bid bie bif bii bil bio bir bis blb bld ble blf bli bll blo blr bls bob bod boe bof boi bol boo bor bos brb brd bre brf bri brl bro brr brs bsb bsd bse bsf bsi bsl bso bsr bss dbb dbd dbe dbf dbi dbl dbo dbr dbs ddb ddd dde ddf ddi ddl ddo ddr dds de- deb ded dee def dei del deo der des dfb dfd dfe dff dfi dfl dfo dfr dfs di- dib did die dif dii dil dio dir dis dl- dlb dld dle dlf dli dll dlo dlr dls dob dod doe dof doi dol doo dor dos drb drd dre dri drl dro drr drs dsb dsd dse dsf dsi dsl dso dsr dss ebb ebd ebe ebf ebi ebl ebo ebr ebs ed- edb edd ede edf edi edl edo edr eds eeb eed eee eef eel eeo eer ees ef- efb efd efe eff efi efl efo efr efs eib eid eie eif eii eil eio eir eis elb eld ele elf eli ell elo elr els eo- eob eod eoe eof eoi eol eoo eor eos erb erd ere erf eri erl ero err ers es- esb esd ese esf esi esl eso esr ess fbb fbd fbe fbf fbi fbl fbo fbr fbs fdb fdd fde fdf fdi fdl fdo fdr fds feb fed fee fef fei fel feo fer fes ffd ffe fff ffi ffl ffo ffr ffs fib fid fie fif fii fil fir fis flb fld fle flf fli fll flo flr fls fob foe fof foi fol foo for fos frb frd fre frf fri frl fro frr frs fsb fsd fse fsf fsi fsl fso fsr fss i-d i-f ibb ibd ibe ibf ibi ibl ibo ibr ibs idb idd ide idf idi idl ido idr ids ie- ied iee ief iei iel ier ies ifb ifd ife iff ifi ifl ifo ifr ifs iib iid iie iif iii iil iio iir iis il- ilb ild ile ilf ili ill ilo ilr ils io- iob iod ioe iof ioi iol ioo ior ios ir- irb ird ire irf iri irl iro irr irs is- isb isd ise isf isi isl iso isr iss lbb lbd lbe lbf lbi lbl lbo lbr lbs ldb ldd lde ldf ldi ldl ldo ldr lds leb led lee lef lei lel leo ler les lfb lfd lfe lff lfi lfl lfo lfr lfs lib lid lie lif lii lil lio lir lis llb lld lle llf lli lll llo llr lls lob lod loe lof loi lol loo lor los lrb lrd lrf lri lro lrr lrs lsb lsd lse lsf lsi lsl lso lsr lss o-i ob- obb obd obe obf obi obl obo obr obs odb odd ode odf odi odl odo odr ods oeb oed oee oef oei oel oeo oer oes of- ofb ofd ofe off ofi ofl ofo ofr ofs oib oid oie oif oii oil oio oir ois olb old ole olf oli oll olo ols oo- oob ood oof ooi ool ooo oor oos or- orb ord ore orf ori orl oro orr ors os- osb osd ose osf osi osl oso osr oss rbb rbd rbe rbf rbi rbl rbo rbr rbs rdb rdd rde rdf rdi rdl rdo rdr rds re- reb red ree ref rei rel reo rer res rfb rfd rfe rff rfi rfl rfo rfr rfs rib rid rie rif rii ril rio rir ris rld rle rlf rli rll rlo rlr rls rob rod roe rof roi rol roo ror ros rrb rrd rrf rri rrl rrr rrs rsb rsd rse rsf rsi rsl rso rsr rss sbb sbd sbe sbf sbi sbl sbo sbr sbs sdb sdd sde sdf sdi sdl sdo sdr sds se- seb sed see sef sei sel seo ser ses sfb sfd sfe sff sfi sfl sfo sfr sfs sib sid sie sif sii sil sio sir sis slb sld sle slf sli sll slo slr sls sob sod soe sof soi sol soo sor sos sr- srb srd sre srf sri srl sro srr srs ss- ssb ssd sse ssf ssi ssl sso ssr sss