-er ddd dde ddm ddo ddp ddr ddt ddz de- ded dee dem deo dep der det dez dmd dme dmm dmo dmp dmr dmt dmz dod doe dom doo dop dor dot doz dpd dpe dpm dpo dpp dpr dpt dpz drd dre drm dro drp drr drt drz dtd dte dtm dto dtp dtr dtt dtz dzd dze dzo dzp dzr ed- edd ede edm edo edp edr edt eed eee eem eeo eep eer eet em- emd eme emm emo emp emr emt eo- eod eoe eom eoo eop eor eot ep- epd epe epm epo epp epr ept epz erd ere erm ero erp err ert erz etd ete etm eto etp etr ett etz eze ezo ezr ezz m-o m-r mdd mde mdm mdo mdp mdr mdt mdz med mee mem meo mep mer met mez mmd mme mmm mmo mmp mmr mmt mmz mod moe mom moo mop mor mot moz mpd mpe mpm mpo mpp mpr mpt mrd mre mrm mro mrp mrr mrt mrz mtd mte mtm mto mtp mtr mtt mzm mzp mzt odd ode odm odo odp odr odt oed oee oem oeo oep oer oet om- omd ome omm omo omp omr omt omz oo- ood oom ooo oop oor oot op- opd ope opm opo opp opr opt or- ord ore orm oro orp orr ort orz ot- otd ote otm oto otp otr ott otz oze ozm ozo ozt ozz p-p pdd pde pdm pdo pdp pdr pdt pdz ped pee pem peo pep per pet pez pmd pme pmm pmo pmp pmr pmt pmz pod poe pom poo pop por pot poz ppd ppe ppm ppo ppp ppr ppt ppz prd pre prm pro prp prr prt prz pt- ptd pte ptm pto ptp ptr ptt ptz pzm pzp pzt rdd rde rdm rdo rdp rdr rdt re- red ree rem reo rep rer ret rez rmd rme rmm rmo rmp rmr rmt rod roe rom roo rop ror rot roz rpd rpe rpm rpo rpp rpr rpt rpz rrd rrm rrp rrr rrt rtd rte rtm rto rtp rtr rtt rtz rze rzm rzo tdd tde tdm tdo tdp tdr tdt te- ted tee tem teo tep ter tet tez tmd tme tmm tmo tmp tmr tmt tmz to- tod toe tom too top tor tot toz tpd tpe tpm tpo tpp tpr tpt tpz trd tre trm tro trp trr trt trz ttd tte ttm tto ttp ttr ttt tzd tze zdm zdt zed zee zem zeo zep zer zet zez zmd zmm zmp zmt zo- zod zoe zom zoo zor zot zpe zpm zpo zpp zpr zpt zro zrp zte ztm ztr zzr zzt zzz