-er eee eef eer ees eet eew ef- efe eff efr efs eft efw ere erf err ers ert erw es- ese esf esr ess est esw ete etf etr ets ett etw ewe ewf ewr ews ewt eww fee fef fer fes fet few ffe fff ffr ffs fft ffw fre frf frr frs frt frw fse fsf fsr fss fst fsw fte ftf ftr fts ftt ftw fwe fwf fws fwt re- ree ref rer res ret rew rfe rff rfr rfs rft rfw rrf rrr rrs rrt rse rsf rsr rss rst rsw rte rtf rtr rts rtt rtw rwe rwf rwr rws se- see sef ser ses set sew sfe sff sfr sfs sft sfw sr- sre srf srr srs srt srw ss- sse ssf ssr sss sst ssw ste stf str sts stt stw swe swf swr sws swt te- tee tef ter tes tet tew tfe tff tfr tfs tft tfw tre trf trr trs trt trw tse tsf tsr tss tst tsw tte ttf ttr tts ttt ttw twe twf twr tws twt tww wee wef wer wes wet wew wfe wff wfr wfs wft wfw wr- wre wrf wrr wrs wrt wrw wse wsf wsr wss wst wsw wtf wtr wts wtt wtw wwe wwf wwt www