-er a-a aaa aae aag aan aao aar aea aee aeg aen aeo aer ag- aga age agg agn ago agr an- ana ane ang ann ano anr aoa aoe aog aon aoo aor ar- ara are arg arn aro arr eaa eae eag ean eao ear eea eee eeg een eeo eer ega ege egg egn ego egr en- ena ene eng enn eno enr eo- eoa eoe eog eon eoo eor era ere erg ern ero err gaa gae gag gan gao gar ge- gea gee geg gen geo ger gga ggg ggn ggo ggr gna gne gnn gno gnr goa goe gog gon goo gor gra gre grg grn gro grr naa nae nag nan nao nar ne- nea nee neg nen neo ner nga nge ngg ngn ngo nna nne nng nnn nno no- noa noe nog non noo nor nra nre nrg nrn nro nrr oaa oae oag oan oao oar oea oee oeg oen oeo oer oga oge ogg ogn ogo on- ona one ong onn ono onr oo- ooa oog oon ooo oor or- ora ore org orn oro orr ra- raa rae rag ran rao rar re- rea ree reg ren reo rer rga rge rgg rgn rgo rgr rna rng rnn rno rnr roa roe rog ron roo ror rra rrg rrn rrr