-ene eeee eees eens eeps eers eese enee ener enes enne enns enp- enrs ense epee epen eper epes epns eppp epps eprp eprs epsp epss eren erer eres erne erns erpe erps erre errs erse esee esen eser eses esne espe espn espp esps esse essp neen neep neer nees nene nens nepe nepr neps nere nerr ners nese nesn nesr ness nnes nnnn nnpr nnss npes npss nren nrpn nrps nrsp nsep nser nsnr nsps nsse nssp nssr nsss peen peep peer pees pen- pene penn pens pepe peps per- pere pern perp perr pers pese pess pnes pnpp ppen pper pppn pppp ppps ppss pre- pree pren prep pres prnp prps prrs prse prss psnr pspp pspr psps psrp psse reen reep rees rene renn rens repe repp repr reps rere rers rese resn resp ress rnsp rppn rpps rrrr rrsp rsee rsnn rsnr rsps rsre se-e se-n se-s seen seep seer sees sene senn senr sens sepe sepn sepp sepr seps sere sern serp serr sers sese sess snee snep sner snes snns snpp snrs spee spen sper spes spne spns spps sprs spse spsp spss sres srnn srps srsp ssee ssep sses ssns sspe ssps ssrs ssss