a-a aaa aaf aag aan aar aau af- afa aff afg afn afr afu ag- aga agf agg agn agr agu an- ana anf ang ann anr anu ar- ara arf arg arn arr aru au- aua auf aug aun aur faa faf fag fan far fau ffa fff ffg ffn ffr ffu fga fgf fgg fgn fgr fna fnf fng fnn fnr fnu fra frf frg frn frr fru fua fuf fug fun fur fuu gaa gaf gag gan gar gau gfa gff gfr gga ggg ggn ggr ggu gna gnf gnn gnr gnu gra grf grg grn grr gru gu- gua guf gug gun gur guu naa naf nag nan nar nau nfa nff nfn nfr nfu nga ngf ngg ngn ngu nna nnf nng nnn nnu nra nrf nrg nrn nrr nru nua nug nun nur nuu ra- raa raf rag ran rar rau rfa rff rfg rfn rfr rfu rga rgf rgg rgn rgr rna rng rnn rnr rnu rra rrf rrg rrn rrr rru rua ruf rug run rur ruu ua- uaa uaf uag uan uar uau ufa uff ufg ufn ufr ufu uga ugf ugg ugn ugr ugu un- una unf ung unn unr unu ur- ura urf urg urn urr uru uua uug uun uur uuu