-er a-a aaa aae aaf aag aan aao aar aea aee aef aeg aen aeo aer af- afa afe aff afg afn afo afr ag- aga age agf agg agn ago agr an- ana ane anf ang ann ano anr aoa aoe aof aog aon aoo aor ar- ara are arf arg arn aro arr eaa eae eaf eag ean eao ear eea eee eef eeg een eeo eer ef- efa efe eff efg efo efr ega ege egf egg egn ego egr en- ena ene enf eng enn eno enr eo- eoa eoe eof eog eon eoo eor era ere erf erg ern ero err faa fae faf fag fan fao far fea fee fef feg fen feo fer ffa ffe fff ffg ffn ffo ffr fga fge fgf fgg fgn fgr fna fne fnf fng fnn fnr foa foe fof fog fon foo for fra fre frf frg frn fro frr gaa gae gaf gag gan gao gar ge- gea gee gef geg gen geo ger gfa gfe gff gfo gfr gga ggg ggn ggo ggr gna gne gnf gnn gno gnr goa goe gof gog gon goo gor gra gre grf grg grn gro grr naa nae naf nag nan nao nar ne- nea nee nef neg nen neo ner nfa nfe nff nfn nfo nfr nga nge ngf ngg ngn ngo nna nne nnf nng nnn nno no- noa noe nof nog non noo nor nra nre nrf nrg nrn nro nrr oaa oae oaf oag oan oao oar oea oee oef oeg oen oeo oer of- ofa ofe off ofg ofn ofo ofr oga oge ogf ogg ogn ogo on- ona one onf ong onn ono onr oo- ooa oof oog oon ooo oor or- ora ore orf org orn oro orr ra- raa rae raf rag ran rao rar re- rea ree ref reg ren reo rer rfa rfe rff rfg rfn rfo rfr rga rge rgf rgg rgn rgo rgr rna rng rnn rno rnr roa roe rof rog ron roo ror rra rrf rrg rrn rrr