-er eee eef een eeo eer eet ef- efe eff efo efr eft en- ene enf enn eno enr ent eo- eoe eof eon eoo eor eot ere erf ern ero err ert ete etf etn eto etr ett fee fef fen feo fer fet ffe fff ffn ffo ffr fft fne fnf fnn fnr fnt foe fof fon foo for fot fre frf frn fro frr frt fte ftf ftn fto ftr ftt ne- nee nef nen neo ner net nfe nff nfn nfo nfr nft nne nnf nnn nno nnt no- noe nof non noo nor not nre nrf nrn nro nrr nrt nte ntf ntn nto ntr ntt oee oef oen oeo oer oet of- ofe off ofn ofo ofr oft on- one onf onn ono onr ont oo- oof oon ooo oor oot or- ore orf orn oro orr ort ot- ote otf otn oto otr ott re- ree ref ren reo rer ret rfe rff rfn rfo rfr rft rnn rno rnr rnt roe rof ron roo ror rot rrf rrn rrr rrt rte rtf rtn rto rtr rtt te- tee tef ten teo ter tet tfe tff tfn tfo tfr tft tne tnf tnn tno tnr tnt to- toe tof ton too tor tot tre trf trn tro trr trt tte ttf ttn tto ttr ttt