a-a a-t aaa aaf aag aao aar aat aay af- afa aff afg afo afr aft afy ag- aga agf agg ago agr agt agy aoa aof aog aoo aor aot ar- ara arf arg aro arr art ary at- ata atf atg ato atr att ay- aya ayf ayo ayr ayt faa faf fag fao far fat fay ffa fff ffg ffo ffr fft ffy fga fgf fgg fgr fgt foa fof fog foo for fot foy fra frf frg fro frr frt fry fta ftf ftg fto ftr ftt fty fy- fya fyo gaa gaf gag gao gar gat gay gfa gff gfo gfr gft gfy gga ggg ggo ggr ggt goa gof gog goo gor got goy gra grf grg gro grr grt gry gta gtf gtg gto gtr gtt gty gy- gya gyf gyo gyr oaa oaf oag oao oar oat of- ofa off ofg ofo ofr oft oga ogf ogg ogo ogt ogy oo- ooa oof oog ooo oor oot or- ora orf org oro orr ort ory ot- ota otf otg oto otr ott oya oyo ra- raa raf rag rao rar rat ray rfa rff rfg rfo rfr rft rga rgf rgg rgo rgr rgt roa rof rog roo ror rot roy rra rrf rrg rrr rrt rta rtf rtg rto rtr rtt rty ry- rya ryf ryg ryo ryr ryy taa taf tag tao tar tat tay tfa tff tfg tfo tfr tft tga tgf tgg tgo tgr tgt tgy to- toa tof tog too tor tot toy tra trf trg tro trr trt try tta ttf ttg tto ttr ttt tty tya tyf tyg tyo tyr tyt yaa yaf yag yao yar yat yay yfa yff yfr yft yga ygo yof yog yoo yor yot yoy yra yrf yrg yro yrt yta ytf yto ytr ytt yyf yyg yyt yyy