-er eee eef eel eep eer eet ef- efe eff efi efl efp efr eft eie eif eii eil eip eir eit ele elf eli ell elp elr elt ep- epe epf epi epl epp epr ept ere erf eri erl erp err ert ete etf eti etl etp etr ett fee fef fei fel fep fer fet ffe fff ffi ffl ffp ffr fft fie fif fii fil fip fir fit fle flf fli fll flp flr flt fpe fpi fpl fpp fpr fpt fre frf fri frl frp frr frt fte ftf fti ftl ftp ftr ftt i-f ie- iee ief iei iel iep ier iet ife iff ifi ifl ifp ifr ift iie iif iii iil iip iir iit il- ile ilf ili ill ilp ilr ilt ipe ipf ipi ipl ipp ipr ipt ir- ire irf iri irl irp irr irt ite itf iti itl itp itt l-p lee lef lei lel lep ler let lfe lff lfi lfl lfp lfr lft lie lif lii lil lip lir lit lle llf lli lll llp llr llt lpe lpf lpi lpl lpp lpr lpt lrf lri lrp lrr lrt lte ltf lti ltl ltp ltr ltt p-p pee pef pei pel pep per pet pfe pff pfi pfl pfp pfr pft pie pif pii pil pip pir pit ple plf pli pll plp plr plt ppe ppf ppi ppl ppp ppr ppt pre prf pri prl prp prr prt pt- pte ptf pti ptl ptp ptr ptt re- ree ref rei rel rep rer ret rfe rff rfi rfl rfp rfr rft rie rif rii ril rip rir rit rle rlf rli rll rlp rlr rlt rpe rpf rpi rpl rpp rpr rpt rrf rri rrl rrp rrr rrt rte rtf rti rtl rtp rtr rtt te- tee tef tei tel tep ter tet tfe tff tfi tfl tfp tfr tft tie tif tii til tip tir tit tle tlf tli tll tlp tlr tlt tpe tpf tpi tpl tpp tpr tpt tre trf tri trl trp trr trt tte ttf tti ttl ttp ttr ttt