a-a a-t aaa aao aas aat aay aoa aoo aos aot as- asa aso ass ast asy at- ata ato ats att ay- aya ayo ays ayt oaa oao oas oat oo- ooa ooo oos oot os- osa oso oss ost ot- ota oto ots ott oya oyo oys saa sao sas sat say soa soo sos sot soy ss- ssa sso sss sst sta sto sts stt sty sy- sya sys syt taa tao tas tat tay to- toa too tos tot toy tsa tso tss tst tsy tta tto tts ttt tty tya tyo tys tyt yaa yao yas yat yay yoo yos yot yoy ysa yso yss yst ysy yta yto yts ytt yys yyt yyy