-er -ol ddd dde ddl ddn ddo ddp ddr dds ddt de- ded dee del den deo dep der des det dl- dld dle dll dlo dlp dlr dls dlt dnd dne dnl dnn dno dnp dnr dns dnt dod doe dol don doo dop dor dos dot dpd dpe dpl dpn dpo dpp dpr dps dpt drd dre drl drn dro drp drr drs drt dsd dse dsl dsn dso dsp dsr dss dst dtd dte dtl dtn dto dtp dtr dts dtt ed- edd ede edl edn edo edp edr eds edt eed eee eel een eeo eep eer ees eet eld ele ell eln elo elp elr els elt en- end ene enl enn eno enp enr ens ent eo- eod eoe eol eon eoo eop eor eos eot ep- epd epe epl epn epo epp epr eps ept erd ere erl ern ero erp err ers ert es- esd ese esl esn eso esp esr ess est etd ete etl etn eto etp etr ets ett l-p ldd lde ldl ldn ldo ldp ldr lds ldt led lee lel len leo lep ler les let lld lle lll lln llo llp llr lls llt lnd lne lnl lnn lno lnp lnr lns lnt lod loe lol lon loo lop lor los lot lpd lpe lpl lpn lpo lpp lpr lps lpt lrd lrn lro lrp lrr lrs lrt lsd lse lsl lsn lso lsp lsr lss lst ltd lte ltl lto ltp ltr lts ltt ndd nde ndl ndn ndo ndp ndr nds ndt ne- ned nee nel nen neo nep ner nes net nld nle nll nln nlo nlp nlr nls nlt nne nnl nnn nno nnp nns nnt no- nod noe nol non noo nop nor nos not npd npe npl npn npo npp npr nps npt nrd nre nrl nrn nro nrp nrr nrs nrt nsd nse nsl nsn nso nsp nsr nss nst ntd nte ntn nto ntp ntr nts ntt odd ode odl odn odo odp odr ods odt oed oee oel oen oeo oep oer oes oet old ole oll oln olo olp ols olt on- ond one onl onn ono onp onr ons ont oo- ood ool oon ooo oop oor oos oot op- opd ope opl opn opo opp opr ops opt or- ord ore orl orn oro orp orr ors ort os- osd ose osl osn oso osp osr oss ost ot- otd ote otl otn oto otp otr ots ott p-p pdd pde pdl pdn pdo pdp pdr pds pdt ped pee pel pen peo pep per pes pet pld ple pll pln plo plp plr pls plt pn- pnd pne pnl pnn pno pnp pnr pns pnt pod poe pol pon poo pop por pos pot ppd ppe ppl ppn ppo ppp ppr pps ppt prd pre prl prn pro prp prr prs prt ps- psd pse psl psn pso psp psr pss pst pt- ptd pte ptl ptn pto ptp ptr pts ptt rdd rde rdl rdn rdo rdp rdr rds rdt re- red ree rel ren reo rep rer res ret rld rle rll rln rlo rlp rlr rls rlt rnd rnn rno rnp rnr rns rnt rod roe rol ron roo rop ror ros rot rpd rpe rpl rpn rpo rpp rpr rps rpt rrd rrl rrn rrp rrr rrs rrt rsd rse rsl rsn rso rsp rsr rss rst rtd rte rtl rtn rto rtp rtr rts rtt sdd sde sdl sdn sdo sdp sdr sds sdt se- sed see sel sen seo sep ser ses set sld sle sll sln slo slp slr sls slt snd sne snl snn sno snp snr sns snt sod soe sol son soo sop sor sos sot spd spe spl spn spo spp spr sps spt sr- srd sre srl srn sro srp srr srs srt ss- ssd sse ssl ssn sso ssp ssr sss sst std ste stl stn sto stp str sts stt tdd tde tdl tdn tdo tdp tdr tds tdt te- ted tee tel ten teo tep ter tes tet tld tle tll tln tlo tlp tlr tls tlt tnd tne tnl tnn tno tnp tnr tns tnt to- tod toe tol ton too top tor tos tot tpd tpe tpl tpn tpo tpp tpr tps tpt trd tre trl trn tro trp trr trs trt tsd tse tsl tsn tso tsp tsr tss tst ttd tte ttl ttn tto ttp ttr tts ttt