-er -up ddd dde ddm ddp ddr ddt ddu de- ded dee dem dep der det deu dmd dme dmm dmp dmr dmt dmu dpd dpe dpm dpp dpr dpt dpu drd dre drm drp drr drt dru dtd dte dtm dtp dtr dtt dtu dud due dum dup dur dut ed- edd ede edm edp edr edt edu eed eee eem eep eer eet em- emd eme emm emp emr emt emu ep- epd epe epm epp epr ept epu erd ere erm erp err ert eru etd ete etm etp etr ett etu eu- eud eue eup eur eut m-r mdd mde mdm mdp mdr mdt mdu med mee mem mep mer met meu mmd mme mmm mmp mmr mmt mmu mpd mpe mpm mpp mpr mpt mpu mrd mre mrm mrp mrr mrt mru mtd mte mtm mtp mtr mtt mtu mud mue mum mup mur mut muu p-p pdd pde pdm pdp pdr pdt pdu ped pee pem pep per pet peu pmd pme pmm pmp pmr pmt pmu ppd ppe ppm ppp ppr ppt ppu prd pre prm prp prr prt pru pt- ptd pte ptm ptp ptr ptt ptu pud pue pum pup pur put puu rdd rde rdm rdp rdr rdt rdu re- red ree rem rep rer ret reu rmd rme rmm rmp rmr rmt rpd rpe rpm rpp rpr rpt rpu rrd rrm rrp rrr rrt rru rtd rte rtm rtp rtr rtt rtu rud rue rum rup rur rut ruu tdd tde tdm tdp tdr tdt tdu te- ted tee tem tep ter tet teu tmd tme tmm tmp tmr tmt tmu tpd tpe tpm tpp tpr tpt tpu trd tre trm trp trr trt tru ttd tte ttm ttp ttr ttt ttu tud tue tum tup tur tut tuu udd ude udm udp udr udt udu ued uee uem uep uer uet um- umd ume umm ump umr umt umu up- upd upe upm upp upr upt upu ur- urd ure urm urp urr urt uru utd ute utm utp utr utt utu uue uum uur uut uuu