-er ddd dde ddl ddp ddr ddt de- ded dee del dep der det dl- dld dle dll dlp dlr dlt dpd dpe dpl dpp dpr dpt drd dre drl drp drr drt dtd dte dtl dtp dtr dtt ed- edd ede edl edp edr edt eed eee eel eep eer eet eld ele ell elp elr elt ep- epd epe epl epp epr ept erd ere erl erp err ert etd ete etl etp etr ett l-p ldd lde ldl ldp ldr ldt led lee lel lep ler let lld lle lll llp llr llt lpd lpe lpl lpp lpr lpt lrd lrp lrr lrt ltd lte ltl ltp ltr ltt p-p pdd pde pdl pdp pdr pdt ped pee pel pep per pet pld ple pll plp plr plt ppd ppe ppl ppp ppr ppt prd pre prl prp prr prt pt- ptd pte ptl ptp ptr ptt rdd rde rdl rdp rdr rdt re- red ree rel rep rer ret rld rle rll rlp rlr rlt rpd rpe rpl rpp rpr rpt rrd rrl rrp rrr rrt rtd rte rtl rtp rtr rtt tdd tde tdl tdp tdr tdt te- ted tee tel tep ter tet tld tle tll tlp tlr tlt tpd tpe tpl tpp tpr tpt trd tre trl trp trr trt ttd tte ttl ttp ttr ttt