-er -ol bbb bbd bbe bbf bbi bbl bbo bbr bbs bbt bdb bdd bde bdf bdi bdl bdo bdr bds bdt be- beb bed bee bef bei bel beo ber bes bet bfb bfd bfe bff bfi bfl bfo bfr bfs bft bi- bib bid bie bif bii bil bio bir bis bit blb bld ble blf bli bll blo blr bls blt bob bod boe bof boi bol boo bor bos bot brb brd bre brf bri brl bro brr brs brt bsb bsd bse bsf bsi bsl bso bsr bss bst btb btd bte btf bti btl bto btr bts btt dbb dbd dbe dbf dbi dbl dbo dbr dbs dbt ddb ddd dde ddf ddi ddl ddo ddr dds ddt de- deb ded dee def dei del deo der des det dfb dfd dfe dff dfi dfl dfo dfr dfs dft di- dib did die dif dii dil dio dir dis dit dl- dlb dld dle dlf dli dll dlo dlr dls dlt dob dod doe dof doi dol doo dor dos dot drb drd dre dri drl dro drr drs drt dsb dsd dse dsf dsi dsl dso dsr dss dst dtb dtd dte dtf dti dtl dto dtr dts dtt ebb ebd ebe ebf ebi ebl ebo ebr ebs ebt ed- edb edd ede edf edi edl edo edr eds edt eeb eed eee eef eel eeo eer ees eet ef- efb efd efe eff efi efl efo efr efs eft eib eid eie eif eii eil eio eir eis eit elb eld ele elf eli ell elo elr els elt eo- eob eod eoe eof eoi eol eoo eor eos eot erb erd ere erf eri erl ero err ers ert es- esb esd ese esf esi esl eso esr ess est etb etd ete etf eti etl eto etr ets ett fbb fbd fbe fbf fbi fbl fbo fbr fbs fbt fdb fdd fde fdf fdi fdl fdo fdr fds fdt feb fed fee fef fei fel feo fer fes fet ffd ffe fff ffi ffl ffo ffr ffs fft fib fid fie fif fii fil fir fis fit flb fld fle flf fli fll flo flr fls flt fob foe fof foi fol foo for fos fot frb frd fre frf fri frl fro frr frs frt fsb fsd fse fsf fsi fsl fso fsr fss fst ftb ftd fte ftf fti ftl fto ftr fts ftt i-d i-f ibb ibd ibe ibf ibi ibl ibo ibr ibs ibt idb idd ide idf idi idl ido idr ids idt ie- ied iee ief iei iel ier ies iet ifb ifd ife iff ifi ifl ifo ifr ifs ift iib iid iie iif iii iil iio iir iis iit il- ilb ild ile ilf ili ill ilo ilr ils ilt io- iob iod ioe iof ioi iol ioo ior ios iot ir- irb ird ire irf iri irl iro irr irs irt is- isb isd ise isf isi isl iso isr iss ist itb itd ite itf iti itl ito its itt lbb lbd lbe lbf lbi lbl lbo lbr lbs lbt ldb ldd lde ldf ldi ldl ldo ldr lds ldt leb led lee lef lei lel leo ler les let lfb lfd lfe lff lfi lfl lfo lfr lfs lft lib lid lie lif lii lil lio lir lis lit llb lld lle llf lli lll llo llr lls llt lob lod loe lof loi lol loo lor los lot lrb lrd lrf lri lro lrr lrs lrt lsb lsd lse lsf lsi lsl lso lsr lss lst ltb ltd lte ltf lti ltl lto ltr lts ltt o-i ob- obb obd obe obf obi obl obo obr obs obt odb odd ode odf odi odl odo odr ods odt oeb oed oee oef oei oel oeo oer oes oet of- ofb ofd ofe off ofi ofl ofo ofr ofs oft oib oid oie oif oii oil oio oir ois oit olb old ole olf oli oll olo ols olt oo- oob ood oof ooi ool ooo oor oos oot or- orb ord ore orf ori orl oro orr ors ort os- osb osd ose osf osi osl oso osr oss ost ot- otb otd ote otf oti otl oto otr ots ott rbb rbd rbe rbf rbi rbl rbo rbr rbs rbt rdb rdd rde rdf rdi rdl rdo rdr rds rdt re- reb red ree ref rei rel reo rer res ret rfb rfd rfe rff rfi rfl rfo rfr rfs rft rib rid rie rif rii ril rio rir ris rit rld rle rlf rli rll rlo rlr rls rlt rob rod roe rof roi rol roo ror ros rot rrb rrd rrf rri rrl rrr rrs rrt rsb rsd rse rsf rsi rsl rso rsr rss rst rtb rtd rte rtf rti rtl rto rtr rts rtt sbb sbd sbe sbf sbi sbl sbo sbr sbs sbt sdb sdd sde sdf sdi sdl sdo sdr sds sdt se- seb sed see sef sei sel seo ser ses set sfb sfd sfe sff sfi sfl sfo sfr sfs sft sib sid sie sif sii sil sio sir sis sit slb sld sle slf sli sll slo slr sls slt sob sod soe sof soi sol soo sor sos sot sr- srb srd sre srf sri srl sro srr srs srt ss- ssb ssd sse ssf ssi ssl sso ssr sss sst stb std ste stf sti stl sto str sts stt tbb tbd tbe tbf tbi tbl tbo tbr tbs tbt tdb tdd tde tdf tdi tdl tdo tdr tds tdt te- teb ted tee tef tei tel teo ter tes tet tfb tfd tfe tff tfi tfl tfo tfr tfs tft tib tid tie tif tii til tio tir tis tit tld tle tlf tli tll tlo tlr tls tlt to- tob tod toe tof toi tol too tor tos tot trb trd tre trf tri trl tro trr trs trt tsb tsd tse tsf tsi