a-a a-b a-c aaa aab aac aag aah aao aar aau aay ab- aba abb abc abg abh abo abr abu aby ac- aca acb acc acg ach aco acr acu acy ag- aga agb agc agg agh ago agr agu agy aha ahb ahc ahg ahh aho ahr ahu ahy aoa aob aoc aog aoh aoo aor aou ar- ara arb arc arg arh aro arr aru ary au- aua aub auc aug auh auo aur ay- aya ayc ayh ayo ayr ayu b-u baa bab bac bag bah bao bar bau bay bba bbb bbc bbg bbh bbo bbr bbu bby bca bcb bcc bcg bch bco bcr bcu bcy bga bgb bgc bgg bgh bgo bgr bgu bha bhb bhc bhg bhh bho bhr bhu boa bob boc bog boh boo bor bou boy bra brb brg brh bro brr bru bry bua bub buc bug buh buo bur buu buy by- bya byc byg byh byo byr byu c-- caa cab cac cag cah cao car cau cay cba cbb cbc cbg cbh cbo cbr cbu cby cca ccb ccc ccg cch cco ccr ccu cga cgb cgc cgg cgh cgo cgr cgu cgy ch- cha chb chc chg chh cho chr chu chy co- coa cob coc cog coh coo cor cou coy cra crb crc crg crh cro crr cru cry cua cub cuc cug cuh cuo cur cuu cuy cya cyb cyc cyg cyo cyr gaa gab gac gag gah gao gar gau gay gba gbc gbg gbh gbo gbr gbu gby gca gcb gcc gcg gch gco gcr gcu gga ggb ggc ggg ggh ggo ggr ggu gha ghb ghc ghg ghh gho ghr goa gob goc gog goh goo gor gou goy gra grb grc grg grh gro grr gru gry gu- gua gub guc gug guo gur guu guy gy- gya gyb gyo gyr haa hab hac hag hah hao har hau hay hba hbb hbc hbg hbh hbo hbr hbu hby hca hcb hcc hcg hch hco hcr hcy hga hgb hgc hgg hgh hgo hgr hgu hgy hha hhb hhc hhg hhh hho hhr hhu hhy hoa hob hoc hog hoh hoo hor hou hoy hr- hra hrb hrc hrg hrh hro hrr hru hua hub huc hug huh huo hur huu huy hy- hya hyb hyc hyg hyh hyo hyr hyy oaa oab oac oag oah oao oar oau ob- oba obb obc obg obh obo obr obu oby oc- oca ocb occ ocg och oco ocr ocu oga ogc ogg ogh ogo ogy oha ohc ohg ohh oho ohr ohu oo- ooa oob ooc oog ooh ooo oor or- ora orb orc org orh oro orr oru ory ou- oua ouc ouh ouo our oya oyo ra- raa rab rac rag rah rao rar rau ray rba rbb rbc rbg rbh rbo rbr rbu rca rcb rcc rcg rch rco rcr rcu rga rgb rgc rgg rgh rgo rgr rh- rha rhb rhc rhg rhh rho rhr rhu roa rob roc rog roh roo ror rou roy rra rrb rrc rrg rrh rrr rru rua rub ruc rug ruh ruo rur ruu ruy ry- rya ryc ryg ryo ryr ryu ryy ua- uaa uab uac uag uah uao uar uau uay uba ubb ubc ubg ubh ubo ubr ubu uby uca ucb ucc ucg uch uco ucr ucu uga ugb ugc ugg ugh ugo ugr ugu uha uhb uhc uhh uho uhr uhu uhy uoa uob uoc uog uoo uor ur- ura urb urc urg uro urr uru ury uua uuc uug uur uuu uyc uyo uyu yaa yab yac yag yah yao yar yau yay ybc ybg ybr yby yca ycc ych yco ycu ycy yga ygc ygo yha yhc yhu yob yoc yog yoo yor you yoy yra yrc yrg yro yru yua yug yuh yuo yur yuu yuy yyb yyc yyg yyu yyy