a-a aaa aaf aag aao aap aar aay af- afa aff afg afo afp afr afy ag- aga agf agg ago agp agr agy aoa aof aog aoo aop aor ap- apa apf apg apo app apr apy ar- ara arf arg aro arp arr ary ay- aya ayf ayo ayp ayr faa faf fag fao fap far fay ffa fff ffg ffo ffp ffr ffy fga fgf fgg fgp fgr foa fof fog foo fop for foy fpa fpg fpo fpp fpr fpy fra frf frg fro frp frr fry fy- fya fyo fyp g-p gaa gaf gag gao gap gar gay gfa gff gfo gfp gfr gfy gga ggg ggo ggp ggr goa gof gog goo gop gor goy gpa gpf gpg gpo gpp gpr gra grf grg gro grp grr gry gy- gya gyf gyo gyp gyr oaa oaf oag oao oap oar of- ofa off ofg ofo ofp ofr oga ogf ogg ogo ogp ogy oo- ooa oof oog ooo oop oor op- opa opf opg opo opp opr opy or- ora orf org oro orp orr ory oya oyo p-p paa paf pag pao pap par pay pfa pff pfg pfo pfp pfr pfy pga pgf pgg pgo pgp pgr pgy poa pof pog poo pop por poy ppa ppf ppg ppo ppp ppr pra prf prg pro prp prr pry py- pya pyf pyg pyo pyr ra- raa raf rag rao rap rar ray rfa rff rfg rfo rfp rfr rga rgf rgg rgo rgp rgr roa rof rog roo rop ror roy rpa rpf rpg rpo rpp rpr rra rrf rrg rrp rrr ry- rya ryf ryg ryo ryr ryy yaa yaf yag yao yap yar yay yfa yff yfr yga ygo yof yog yoo yop yor yoy ypa ypf ypg ypo yra yrf yrg yro yrp yyf yyg yyy