a-a aaa aaf aag aan aao aay af- afa aff afg afn afo afy ag- aga agf agg agn ago agy an- ana anf ang ann ano any aoa aof aog aon aoo ay- aya ayf ayn ayo faa faf fag fan fao fay ffa fff ffg ffn ffo ffy fga fgf fgg fgn fna fnf fng fnn foa fof fog fon foo foy fy- fya fyn fyo gaa gaf gag gan gao gay gfa gff gfo gfy gga ggg ggn ggo gna gnf gnn gno goa gof gog gon goo goy gy- gya gyf gyn gyo naa naf nag nan nao nay nfa nff nfn nfo nga ngf ngg ngn ngo nna nnf nng nnn nno no- noa nof nog non noo noy nya nyf nyg nyn nyo nyy oaa oaf oag oan oao of- ofa off ofg ofn ofo oga ogf ogg ogn ogo ogy on- ona onf ong onn ono ony oo- ooa oof oog oon ooo oya oyo yaa yaf yag yan yao yay yfa yff yga ygo yna yng ynn yny yof yog yon yoo yoy yyf yyg yyy