a-a a-t aaa aaf aao aap aar aat aay af- afa aff afo afp afr aft afy aoa aof aoo aop aor aot ap- apa apf apo app apr apt apy ar- ara arf aro arp arr art ary at- ata atf ato atp atr att ay- aya ayf ayo ayp ayr ayt faa faf fao fap far fat fay ffa fff ffo ffp ffr fft ffy foa fof foo fop for fot foy fpa fpo fpp fpr fpt fpy fra frf fro frp frr frt fry fta ftf fto ftp ftr ftt fty fy- fya fyo fyp oaa oaf oao oap oar oat of- ofa off ofo ofp ofr oft oo- ooa oof ooo oop oor oot op- opa opf opo opp opr opt opy or- ora orf oro orp orr ort ory ot- ota otf oto otp otr ott oya oyo p-p paa paf pao pap par pat pay pfa pff pfo pfp pfr pft pfy poa pof poo pop por pot poy ppa ppf ppo ppp ppr ppt pra prf pro prp prr prt pry pt- pta ptf pto ptp ptr ptt pty py- pya pyf pyo pyr pyt ra- raa raf rao rap rar rat ray rfa rff rfo rfp rfr rft roa rof roo rop ror rot roy rpa rpf rpo rpp rpr rpt rra rrf rrp rrr rrt rta rtf rto rtp rtr rtt rty ry- rya ryf ryo ryr ryy taa taf tao tap tar tat tay tfa tff tfo tfp tfr tft to- toa tof too top tor tot toy tpa tpf tpo tpp tpr tpt tra trf tro trp trr trt try tta ttf tto ttp ttr ttt tty tya tyf tyo typ tyr tyt yaa yaf yao yap yar yat yay yfa yff yfr yft yof yoo yop yor yot yoy ypa ypf ypo yra yrf yro yrp yrt yta ytf yto ytp ytr ytt yyf yyt yyy