a-a a-t aaa aao aap aas aat aay aoa aoo aop aos aot ap- apa apo app aps apt apy as- asa aso asp ass ast asy at- ata ato atp ats att ay- aya ayo ayp ays ayt oaa oao oap oas oat oo- ooa ooo oop oos oot op- opa opo opp ops opt opy os- osa oso osp oss ost ot- ota oto otp ots ott oya oyo oys p-p paa pao pap pas pat pay poa poo pop pos pot poy ppa ppo ppp pps ppt ps- psa pso psp pss pst psy pt- pta pto ptp pts ptt pty py- pya pyo pys pyt saa sao sap sas sat say soa soo sop sos sot soy spa spo spp sps spt spy ss- ssa sso ssp sss sst sta sto stp sts stt sty sy- sya syp sys syt taa tao tap tas tat tay to- toa too top tos tot toy tpa tpo tpp tps tpt tsa tso tsp tss tst tsy tta tto ttp tts ttt tty tya tyo typ tys tyt yaa yao yap yas yat yay yoo yop yos yot yoy ypa ypo yps ysa yso ysp yss yst ysy yta yto ytp yts ytt yys yyt yyy