eee eep ees eet eew ep- epe epp eps ept epw es- ese esp ess est esw ete etp ets ett etw ewe ewp ews ewt eww p-p pee pep pes pet pew ppe ppp pps ppt ppw ps- pse psp pss pst psw pt- pte ptp pts ptt ptw pwe pwp pws pwt se- see sep ses set sew spe spp sps spt spw ss- sse ssp sss sst ssw ste stp sts stt stw swe swp sws swt te- tee tep tes tet tew tpe tpp tps tpt tpw tse tsp tss tst tsw tte ttp tts ttt ttw twe twp tws twt tww wee wep wes wet wew wpe wpp wps wpt wse wsp wss wst wsw wtp wts wtt wtw wwe wwp wwt www