-er a-a aaa aae aag aan aar aau aea aee aeg aen aer aeu ag- aga age agg agn agr agu an- ana ane ang ann anr anu ar- ara are arg arn arr aru au- aua aue aug aun aur eaa eae eag ean ear eau eea eee eeg een eer ega ege egg egn egr egu en- ena ene eng enn enr enu era ere erg ern err eru eu- eua eue eug eun eur gaa gae gag gan gar gau ge- gea gee geg gen ger geu gga ggg ggn ggr ggu gna gne gnn gnr gnu gra gre grg grn grr gru gu- gua gue gug gun gur guu naa nae nag nan nar nau ne- nea nee neg nen ner neu nga nge ngg ngn ngu nna nne nng nnn nnu nra nre nrg nrn nrr nru nua nue nug nun nur nuu ra- raa rae rag ran rar rau re- rea ree reg ren rer reu rga rge rgg rgn rgr rna rng rnn rnr rnu rra rrg rrn rrr rru rua rue rug run rur ruu ua- uaa uae uag uan uar uau uea uee ueg uen uer uga uge ugg ugn ugr ugu un- una une ung unn unr unu ur- ura ure urg urn urr uru uua uue uug uun uur uuu