a-a a-t aaa aao aap aar aat aay aoa aoo aop aor aot ap- apa apo app apr apt apy ar- ara aro arp arr art ary at- ata ato atp atr att ay- aya ayo ayp ayr ayt oaa oao oap oar oat oo- ooa ooo oop oor oot op- opa opo opp opr opt opy or- ora oro orp orr ort ory ot- ota oto otp otr ott oya oyo p-p paa pao pap par pat pay poa poo pop por pot poy ppa ppo ppp ppr ppt pra pro prp prr prt pry pt- pta pto ptp ptr ptt pty py- pya pyo pyr pyt ra- raa rao rap rar rat ray roa roo rop ror rot roy rpa rpo rpp rpr rpt rra rrp rrr rrt rta rto rtp rtr rtt rty ry- rya ryo ryr ryy taa tao tap tar tat tay to- toa too top tor tot toy tpa tpo tpp tpr tpt tra tro trp trr trt try tta tto ttp ttr ttt tty tya tyo typ tyr tyt yaa yao yap yar yat yay yoo yop yor yot yoy ypa ypo yra yro yrp yrt yta yto ytp ytr ytt yyt yyy