a-a a-b a-t aaa aab aag aak aao aar aat aay ab- aba abb abg abk abo abr abt aby ag- aga agb agg agk ago agr agt agy aka akb akg akk ako akr aoa aob aog aok aoo aor aot ar- ara arb arg ark aro arr art ary at- ata atb atg ato atr att ay- aya ayk ayo ayr ayt baa bab bag bak bao bar bat bay bba bbb bbg bbk bbo bbr bbt bby bga bgb bgg bgk bgo bgr bgt bka bkb bkg bkk bko bkr bkt boa bob bog bok boo bor bot boy bra brb brg brk bro brr brt bry bta btb btg btk bto btr btt bty by- bya byg byk byo byr byt gaa gab gag gak gao gar gat gay gba gbg gbk gbo gbr gbt gby gga ggb ggg ggo ggr ggt gka gkb gko gkt goa gob gog gok goo gor got goy gra grb grg grk gro grr grt gry gta gtb gtg gtk gto gtr gtt gty gy- gya gyb gyo gyr k-t ka- kaa kab kag kak kao kar kat kay kba kbb kbk kbo kbr kga kgb kgo kgy kkb kkk kkr kkt kky koa kob kog kok koo kor kot koy kra krg krk kro krr krt kry kta ktb ktg ktk kto ktr ktt kya kyo kyr kyt oaa oab oag oak oao oar oat ob- oba obb obg obk obo obr obt oby oga ogg ogo ogt ogy oka okb okg okk oko okr oo- ooa oob oog ook ooo oor oot or- ora orb org ork oro orr ort ory ot- ota otb otg otk oto otr ott oya oyo ra- raa rab rag rak rao rar rat ray rba rbb rbg rbk rbo rbr rbt rga rgb rgg rgk rgo rgr rgt rkb rkg rkk rko rkt rky roa rob rog rok roo ror rot roy rra rrb rrg rrk rrr rrt rta rtb rtg rtk rto rtr rtt rty ry- rya ryg ryk ryo ryr ryy taa tab tag tak tao tar tat tay tba tbb tbg tbk tbo tbr tbt tga tgb tgg tgk tgo tgr tgt tgy tka tkb tkg tkk tko tkr tkt tky to- toa tob tog tok too tor tot toy tra trb trg trk tro trr trt try tta ttb ttg ttk tto ttr ttt tty tya tyg tyo tyr tyt yaa yab yag yak yao yar yat yay ybg ybr yby yga ygo yka ykk yob yog yok yoo yor yot yoy yra yrg yro yrt yta ytk yto ytr ytt yyb yyg yyt yyy