a-a a-t aaa aap aas aat aay ap- apa app aps apt apy as- asa asp ass ast asy at- ata atp ats att ay- aya ayp ays ayt p-p paa pap pas pat pay ppa ppp pps ppt ps- psa psp pss pst psy pt- pta ptp pts ptt pty py- pya pys pyt saa sap sas sat say spa spp sps spt spy ss- ssa ssp sss sst sta stp sts stt sty sy- sya syp sys syt taa tap tas tat tay tpa tpp tps tpt tsa tsp tss tst tsy tta ttp tts ttt tty tya typ tys tyt yaa yap yas yat yay ypa yps ysa ysp yss yst ysy yta ytp yts ytt yys yyt yyy