-er -ol ddd dde ddf ddi ddl ddo ddr ddt de- ded dee def dei del deo der det dfd dfe dff dfi dfl dfo dfr dft di- did die dif dii dil dio dir dit dl- dld dle dlf dli dll dlo dlr dlt dod doe dof doi dol doo dor dot drd dre dri drl dro drr drt dtd dte dtf dti dtl dto dtr dtt ed- edd ede edf edi edl edo edr edt eed eee eef eel eeo eer eet ef- efd efe eff efi efl efo efr eft eid eie eif eii eil eio eir eit eld ele elf eli ell elo elr elt eo- eod eoe eof eoi eol eoo eor eot erd ere erf eri erl ero err ert etd ete etf eti etl eto etr ett fdd fde fdf fdi fdl fdo fdr fdt fed fee fef fei fel feo fer fet ffd ffe fff ffi ffl ffo ffr fft fid fie fif fii fil fir fit fld fle flf fli fll flo flr flt foe fof foi fol foo for fot frd fre frf fri frl fro frr frt ftd fte ftf fti ftl fto ftr ftt i-d i-f idd ide idf idi idl ido idr idt ie- ied iee ief iei iel ier iet ifd ife iff ifi ifl ifo ifr ift iid iie iif iii iil iio iir iit il- ild ile ilf ili ill ilo ilr ilt io- iod ioe iof ioi iol ioo ior iot ir- ird ire irf iri irl iro irr irt itd ite itf iti itl ito itt ldd lde ldf ldi ldl ldo ldr ldt led lee lef lei lel leo ler let lfd lfe lff lfi lfl lfo lfr lft lid lie lif lii lil lio lir lit lld lle llf lli lll llo llr llt lod loe lof loi lol loo lor lot lrd lrf lri lro lrr lrt ltd lte ltf lti ltl lto ltr ltt o-i odd ode odf odi odl odo odr odt oed oee oef oei oel oeo oer oet of- ofd ofe off ofi ofl ofo ofr oft oid oie oif oii oil oio oir oit old ole olf oli oll olo olt oo- ood oof ooi ool ooo oor oot or- ord ore orf ori orl oro orr ort ot- otd ote otf oti otl oto otr ott rdd rde rdf rdi rdl rdo rdr rdt re- red ree ref rei rel reo rer ret rfd rfe rff rfi rfl rfo rfr rft rid rie rif rii ril rio rir rit rld rle rlf rli rll rlo rlr rlt rod roe rof roi rol roo ror rot rrd rrf rri rrl rrr rrt rtd rte rtf rti rtl rto rtr rtt tdd tde tdf tdi tdl tdo tdr tdt te- ted tee tef tei tel teo ter tet tfd tfe tff tfi tfl tfo tfr tft tid tie tif tii til tio tir tit tld tle tlf tli tll tlo tlr tlt to- tod toe tof toi tol too tor tot trd tre trf tri trl tro trr trt ttd tte ttf tti ttl tto ttr ttt