-er ddd dde ddm ddn ddo ddp ddr dds ddt de- ded dee dem den deo dep der des det dmd dme dmm dmn dmo dmp dmr dms dmt dnd dne dnm dnn dno dnp dnr dns dnt dod doe dom don doo dop dor dos dot dpd dpe dpm dpn dpo dpp dpr dps dpt drd dre drm drn dro drp drr drs drt dsd dse dsm dsn dso dsp dsr dss dst dtd dte dtm dtn dto dtp dtr dts dtt ed- edd ede edm edn edo edp edr eds edt eed eee eem een eeo eep eer ees eet em- emd eme emm emn emo emp emr ems emt en- end ene enm enn eno enp enr ens ent eo- eod eoe eom eon eoo eop eor eos eot ep- epd epe epm epn epo epp epr eps ept erd ere erm ern ero erp err ers ert es- esd ese esm esn eso esp esr ess est etd ete etm etn eto etp etr ets ett m-o m-r mdd mde mdm mdn mdo mdp mdr mds mdt med mee mem men meo mep mer mes met mmd mme mmm mmn mmo mmp mmr mms mmt mne mnm mnn mno mnp mnr mns mnt mod moe mom mon moo mop mor mos mot mpd mpe mpm mpn mpo mpp mpr mps mpt mrd mre mrm mrn mro mrp mrr mrs mrt msd mse msm msn mso msp msr mss mst mtd mte mtm mtn mto mtp mtr mts mtt ndd nde ndm ndn ndo ndp ndr nds ndt ne- ned nee nem nen neo nep ner nes net nmd nme nmm nmn nmo nmp nmr nms nmt nne nnm nnn nno nnp nns nnt no- nod noe nom non noo nop nor nos not npd npe npm npn npo npp npr nps npt nrd nre nrm nrn nro nrp nrr nrs nrt nsd nse nsm nsn nso nsp nsr nss nst ntd nte ntm ntn nto ntp ntr nts ntt odd ode odm odn odo odp odr ods odt oed oee oem oen oeo oep oer oes oet om- omd ome omm omn omo omp omr oms omt on- ond one onn ono onp onr ons ont oo- ood oom oon ooo oop oor oos oot op- opd ope opm opn opo opp opr ops opt or- ord ore orm orn oro orp orr ors ort os- osd ose osm osn oso osp osr oss ost ot- otd ote otm otn oto otp otr ots ott p-p pdd pde pdm pdn pdo pdp pdr pds pdt ped pee pem pen peo pep per pes pet pmd pme pmm pmn pmo pmp pmr pms pmt pn- pnd pne pnm pnn pno pnp pnr pns pnt pod poe pom pon poo pop por pos pot ppd ppe ppm ppn ppo ppp ppr pps ppt prd pre prm prn pro prp prr prs prt ps- psd pse psm psn pso psp psr pss pst pt- ptd pte ptm ptn pto ptp ptr pts ptt rdd rde rdm rdn rdo rdp rdr rds rdt re- red ree rem ren reo rep rer res ret rmd rme rmm rmn rmo rmp rmr rms rmt rnd rnm rnn rno rnp rnr rns rnt rod roe rom ron roo rop ror ros rot rpd rpe rpm rpn rpo rpp rpr rps rpt rrd rrm rrn rrp rrr rrs rrt rsd rse rsm rsn rso rsp rsr rss rst rtd rte rtm rtn rto rtp rtr rts rtt sdd sde sdm sdn sdo sdp sdr sds sdt se- sed see sem sen seo sep ser ses set smd sme smm smn smo smp smr sms smt snd sne snm snn sno snp snr sns snt sod soe som son soo sop sor sos sot spd spe spm spn spo spp spr sps spt sr- srd sre srm srn sro srp srr srs srt ss- ssd sse ssm ssn sso ssp ssr sss sst std ste stm stn sto stp str sts stt tdd tde tdm tdn tdo tdp tdr tds tdt te- ted tee tem ten teo tep ter tes tet tmd tme tmm tmn tmo tmp tmr tms tmt tnd tne tnm tnn tno tnp tnr tns tnt to- tod toe tom ton too top tor tos tot tpd tpe tpm tpn tpo tpp tpr tps tpt trd tre trm trn tro trp trr trs trt tsd tse tsm tsn tso tsp tsr tss tst ttd tte ttm ttn tto ttp ttr tts ttt