-er -ol ddd dde ddf ddi ddl ddo ddp ddr ddt de- ded dee def dei del deo dep der det dfd dfe dff dfi dfl dfo dfp dfr dft di- did die dif dii dil dio dip dir dit dl- dld dle dlf dli dll dlo dlp dlr dlt dod doe dof doi dol doo dop dor dot dpd dpe dpf dpi dpl dpo dpp dpr dpt drd dre dri drl dro drp drr drt dtd dte dtf dti dtl dto dtp dtr dtt ed- edd ede edf edi edl edo edp edr edt eed eee eef eel eeo eep eer eet ef- efd efe eff efi efl efo efp efr eft eid eie eif eii eil eio eip eir eit eld ele elf eli ell elo elp elr elt eo- eod eoe eof eoi eol eoo eop eor eot ep- epd epe epf epi epl epo epp epr ept erd ere erf eri erl ero erp err ert etd ete etf eti etl eto etp etr ett fdd fde fdf fdi fdl fdo fdp fdr fdt fed fee fef fei fel feo fep fer fet ffd ffe fff ffi ffl ffo ffp ffr fft fid fie fif fii fil fip fir fit fld fle flf fli fll flo flp flr flt foe fof foi fol foo fop for fot fpd fpe fpi fpl fpo fpp fpr fpt frd fre frf fri frl fro frp frr frt ftd fte ftf fti ftl fto ftp ftr ftt i-d i-f idd ide idf idi idl ido idp idr idt ie- ied iee ief iei iel iep ier iet ifd ife iff ifi ifl ifo ifp ifr ift iid iie iif iii iil iio iip iir iit il- ild ile ilf ili ill ilo ilp ilr ilt io- iod ioe iof ioi iol ioo iop ior iot ipd ipe ipf ipi ipl ipo ipp ipr ipt ir- ird ire irf iri irl iro irp irr irt itd ite itf iti itl ito itp itt l-p ldd lde ldf ldi ldl ldo ldp ldr ldt led lee lef lei lel leo lep ler let lfd lfe lff lfi lfl lfo lfp lfr lft lid lie lif lii lil lio lip lir lit lld lle llf lli lll llo llp llr llt lod loe lof loi lol loo lop lor lot lpd lpe lpf lpi lpl lpo lpp lpr lpt lrd lrf lri lro lrp lrr lrt ltd lte ltf lti ltl lto ltp ltr ltt o-i odd ode odf odi odl odo odp odr odt oed oee oef oei oel oeo oep oer oet of- ofd ofe off ofi ofl ofo ofp ofr oft oid oie oif oii oil oio oip oir oit old ole olf oli oll olo olp olt oo- ood oof ooi ool ooo oop oor oot op- opd ope opf opi opl opo opp opr opt or- ord ore orf ori orl oro orp orr ort ot- otd ote otf oti otl oto otp otr ott p-p pdd pde pdf pdi pdl pdo pdp pdr pdt ped pee pef pei pel peo pep per pet pfd pfe pff pfi pfl pfo pfp pfr pft pid pie pif pii pil pio pip pir pit pld ple plf pli pll plo plp plr plt pod poe pof poi pol poo pop por pot ppd ppe ppf ppi ppl ppo ppp ppr ppt prd pre prf pri prl pro prp prr prt pt- ptd pte ptf pti ptl pto ptp ptr ptt rdd rde rdf rdi rdl rdo rdp rdr rdt re- red ree ref rei rel reo rep rer ret rfd rfe rff rfi rfl rfo rfp rfr rft rid rie rif rii ril rio rip rir rit rld rle rlf rli rll rlo rlp rlr rlt rod roe rof roi rol roo rop ror rot rpd rpe rpf rpi rpl rpo rpp rpr rpt rrd rrf rri rrl rrp rrr rrt rtd rte rtf rti rtl rto rtp rtr rtt tdd tde tdf tdi tdl tdo tdp tdr tdt te- ted tee tef tei tel teo tep ter tet tfd tfe tff tfi tfl tfo tfp tfr tft tid tie tif tii til tio tip tir tit tld tle tlf tli tll tlo tlp tlr tlt to- tod toe tof toi tol too top tor tot tpd tpe tpf tpi tpl tpo tpp tpr tpt trd tre trf tri trl tro trp trr trt ttd tte ttf tti ttl tto ttp ttr ttt