-er -ol ddd dde ddf ddl ddn ddo ddr dds ddt de- ded dee def del den deo der des det dfd dfe dff dfl dfn dfo dfr dfs dft dl- dld dle dlf dll dlo dlr dls dlt dnd dne dnf dnl dnn dno dnr dns dnt dod doe dof dol don doo dor dos dot drd dre drl drn dro drr drs drt dsd dse dsf dsl dsn dso dsr dss dst dtd dte dtf dtl dtn dto dtr dts dtt ed- edd ede edf edl edn edo edr eds edt eed eee eef eel een eeo eer ees eet ef- efd efe eff efl efo efr efs eft eld ele elf ell eln elo elr els elt en- end ene enf enl enn eno enr ens ent eo- eod eoe eof eol eon eoo eor eos eot erd ere erf erl ern ero err ers ert es- esd ese esf esl esn eso esr ess est etd ete etf etl etn eto etr ets ett fdd fde fdf fdl fdn fdo fdr fds fdt fed fee fef fel fen feo fer fes fet ffd ffe fff ffl ffn ffo ffr ffs fft fld fle flf fll fln flo flr fls flt fnd fne fnf fnl fnn fnr fns fnt foe fof fol fon foo for fos fot frd fre frf frl frn fro frr frs frt fsd fse fsf fsl fsn fso fsr fss fst ftd fte ftf ftl ftn fto ftr fts ftt ldd lde ldf ldl ldn ldo ldr lds ldt led lee lef lel len leo ler les let lfd lfe lff lfl lfn lfo lfr lfs lft lld lle llf lll lln llo llr lls llt lnd lne lnl lnn lno lnr lns lnt lod loe lof lol lon loo lor los lot lrd lrf lrn lro lrr lrs lrt lsd lse lsf lsl lsn lso lsr lss lst ltd lte ltf ltl lto ltr lts ltt ndd nde ndf ndl ndn ndo ndr nds ndt ne- ned nee nef nel nen neo ner nes net nfd nfe nff nfl nfn nfo nfr nfs nft nld nle nlf nll nln nlo nlr nls nlt nne nnf nnl nnn nno nns nnt no- nod noe nof nol non noo nor nos not nrd nre nrf nrl nrn nro nrr nrs nrt nsd nse nsf nsl nsn nso nsr nss nst ntd nte ntf ntn nto ntr nts ntt odd ode odf odl odn odo odr ods odt oed oee oef oel oen oeo oer oes oet of- ofd ofe off ofl ofn ofo ofr ofs oft old ole olf oll oln olo ols olt on- ond one onf onl onn ono onr ons ont oo- ood oof ool oon ooo oor oos oot or- ord ore orf orl orn oro orr ors ort os- osd ose osf osl osn oso osr oss ost ot- otd ote otf otl otn oto otr ots ott rdd rde rdf rdl rdn rdo rdr rds rdt re- red ree ref rel ren reo rer res ret rfd rfe rff rfl rfn rfo rfr rfs rft rld rle rlf rll rln rlo rlr rls rlt rnd rnn rno rnr rns rnt rod roe rof rol ron roo ror ros rot rrd rrf rrl rrn rrr rrs rrt rsd rse rsf rsl rsn rso rsr rss rst rtd rte rtf rtl rtn rto rtr rts rtt sdd sde sdf sdl sdn sdo sdr sds sdt se- sed see sef sel sen seo ser ses set sfd sfe sff sfl sfn sfo sfr sfs sft sld sle slf sll sln slo slr sls slt snd sne snf snl snn sno snr sns snt sod soe sof sol son soo sor sos sot sr- srd sre srf srl srn sro srr srs srt ss- ssd sse ssf ssl ssn sso ssr sss sst std ste stf stl stn sto str sts stt tdd tde tdf tdl tdn tdo tdr tds tdt te- ted tee tef tel ten teo ter tes tet tfd tfe tff tfl tfn tfo tfr tfs tft tld tle tlf tll tln tlo tlr tls tlt tnd tne tnf tnl tnn tno tnr tns tnt to- tod toe tof tol ton too tor tos tot trd tre trf trl trn tro trr trs trt tsd tse tsf tsl tsn tso tsr tss tst ttd tte ttf ttl ttn tto ttr tts ttt