-er -ey eee een eep eer eet eey en- ene enn enp enr ent eny ep- epe epn epp epr ept ere ern erp err ert ery ete etn etp etr ett ety eye eyn eyp eyr eyt ne- nee nen nep ner net ney nne nnn nnp nnt npe npn npp npr npt nre nrn nrp nrr nrt nry nte ntn ntp ntr ntt nye nyn nyp nyt nyy p-p pee pen pep per pet pey pn- pne pnn pnp pnr pnt pny ppe ppn ppp ppr ppt pre prn prp prr prt pry pt- pte ptn ptp ptr ptt pty py- pye pyn pyr pyt re- ree ren rep rer ret rey rnn rnp rnr rnt rny rpe rpn rpp rpr rpt rrn rrp rrr rrt rte rtn rtp rtr rtt rty ry- rye ryn ryr ryy te- tee ten tep ter tet tey tne tnn tnp tnr tnt tpe tpn tpp tpr tpt tre trn trp trr trt try tte ttn ttp ttr ttt tty tye tyn typ tyr tyt yee yen yep yer yet yey yne ynn ynp yny yre yrn yrp yrt yte ytn ytp ytr ytt yye yyt yyy