-er eee een eeo eep eer eet en- ene enn eno enp enr ent eo- eoe eon eoo eop eor eot ep- epe epn epo epp epr ept ere ern ero erp err ert ete etn eto etp etr ett ne- nee nen neo nep ner net nne nnn nno nnp nnt no- noe non noo nop nor not npe npn npo npp npr npt nre nrn nro nrp nrr nrt nte ntn nto ntp ntr ntt oee oen oeo oep oer oet on- one onn ono onp onr ont oo- oon ooo oop oor oot op- ope opn opo opp opr opt or- ore orn oro orp orr ort ot- ote otn oto otp otr ott p-p pee pen peo pep per pet pn- pne pnn pno pnp pnr pnt poe pon poo pop por pot ppe ppn ppo ppp ppr ppt pre prn pro prp prr prt pt- pte ptn pto ptp ptr ptt re- ree ren reo rep rer ret rnn rno rnp rnr rnt roe ron roo rop ror rot rpe rpn rpo rpp rpr rpt rrn rrp rrr rrt rte rtn rto rtp rtr rtt te- tee ten teo tep ter tet tne tnn tno tnp tnr tnt to- toe ton too top tor tot tpe tpn tpo tpp tpr tpt tre trn tro trp trr trt tte ttn tto ttp ttr ttt