-er ddd dde ddi ddm ddo ddp ddr dds ddt de- ded dee dei dem deo dep der des det di- did die dii dim dio dip dir dis dit dmd dme dmi dmm dmo dmp dmr dms dmt dod doe doi dom doo dop dor dos dot dpd dpe dpi dpm dpo dpp dpr dps dpt drd dre dri drm dro drp drr drs drt dsd dse dsi dsm dso dsp dsr dss dst dtd dte dti dtm dto dtp dtr dts dtt ed- edd ede edi edm edo edp edr eds edt eed eee eem eeo eep eer ees eet eid eie eii eim eio eip eir eis eit em- emd eme emi emm emo emp emr ems emt eo- eod eoe eoi eom eoo eop eor eos eot ep- epd epe epi epm epo epp epr eps ept erd ere eri erm ero erp err ers ert es- esd ese esi esm eso esp esr ess est etd ete eti etm eto etp etr ets ett i-d idd ide idi idm ido idp idr ids idt ie- ied iee iei iem iep ier ies iet iid iie iii iim iio iip iir iis iit im- imd ime imi imm imo imp ims imt io- iod ioe ioi iom ioo iop ior ios iot ipd ipe ipi ipm ipo ipp ipr ips ipt ir- ird ire iri irm iro irp irr irs irt is- isd ise isi ism iso isp isr iss ist itd ite iti itm ito itp its itt m-o m-r mdd mde mdi mdm mdo mdp mdr mds mdt med mee mei mem meo mep mer mes met mi- mid mie mii mim mio mip mir mis mit mmd mme mmi mmm mmo mmp mmr mms mmt mod moe moi mom moo mop mor mos mot mpd mpe mpi mpm mpo mpp mpr mps mpt mrd mre mri mrm mro mrp mrr mrs mrt msd mse msi msm mso msp msr mss mst mtd mte mti mtm mto mtp mtr mts mtt o-i odd ode odi odm odo odp odr ods odt oed oee oei oem oeo oep oer oes oet oid oie oii oim oio oip oir ois oit om- omd ome omi omm omo omp omr oms omt oo- ood ooi oom ooo oop oor oos oot op- opd ope opi opm opo opp opr ops opt or- ord ore ori orm oro orp orr ors ort os- osd ose osi osm oso osp osr oss ost ot- otd ote oti otm oto otp otr ots ott p-p pdd pde pdi pdm pdo pdp pdr pds pdt ped pee pei pem peo pep per pes pet pid pie pii pim pio pip pir pis pit pmd pme pmi pmm pmo pmp pmr pms pmt pod poe poi pom poo pop por pos pot ppd ppe ppi ppm ppo ppp ppr pps ppt prd pre pri prm pro prp prr prs prt ps- psd pse psi psm pso psp psr pss pst pt- ptd pte pti ptm pto ptp ptr pts ptt rdd rde rdi rdm rdo rdp rdr rds rdt re- red ree rei rem reo rep rer res ret rid rie rii rim rio rip rir ris rit rmd rme rmi rmm rmo rmp rmr rms rmt rod roe roi rom roo rop ror ros rot rpd rpe rpi rpm rpo rpp rpr rps rpt rrd rri rrm rrp rrr rrs rrt rsd rse rsi rsm rso rsp rsr rss rst rtd rte rti rtm rto rtp rtr rts rtt sdd sde sdi sdm sdo sdp sdr sds sdt se- sed see sei sem seo sep ser ses set sid sie sii sim sio sip sir sis sit smd sme smi smm smo smp smr sms smt sod soe soi som soo sop sor sos sot spd spe spi spm spo spp spr sps spt sr- srd sre sri srm sro srp srr srs srt ss- ssd sse ssi ssm sso ssp ssr sss sst std ste sti stm sto stp str sts stt tdd tde tdi tdm tdo tdp tdr tds tdt te- ted tee tei tem teo tep ter tes tet tid tie tii tim tio tip tir tis tit tmd tme tmi tmm tmo tmp tmr tms tmt to- tod toe toi tom too top tor tos tot tpd tpe tpi tpm tpo tpp tpr tps tpt trd tre tri trm tro trp trr trs trt tsd tse tsi tsm tso tsp tsr tss tst ttd tte tti ttm tto ttp ttr tts ttt