-al -ol a-a a-b a-c aaa aab aac aag aah aal aao aar aau ab- aba abb abc abg abh abl abo abr abu ac- aca acb acc acg ach acl aco acr acu ag- aga agb agc agg agh agl ago agr agu aha ahb ahc ahg ahh ahl aho ahr ahu al- ala alb alc alg alh all alo alr alu aoa aob aoc aog aoh aol aoo aor aou ar- ara arb arc arg arh arl aro arr aru au- aua aub auc aug auh aul auo aur b-u baa bab bac bag bah bal bao bar bau bba bbb bbc bbg bbh bbl bbo bbr bbu bca bcb bcc bcg bch bcl bco bcr bcu bga bgb bgc bgg bgh bgl bgo bgr bgu bha bhb bhc bhg bhh bhl bho bhr bhu bla blb blc blg blh bll blo blr blu boa bob boc bog boh bol boo bor bou bra brb brg brh brl bro brr bru bua bub buc bug buh bul buo bur buu c-- caa cab cac cag cah cal cao car cau cba cbb cbc cbg cbh cbl cbo cbr cbu cca ccb ccc ccg cch ccl cco ccr ccu cga cgb cgc cgg cgh cgl cgo cgr cgu ch- cha chb chc chg chh chl cho chr chu cl- cla clb clc clg clh cll clo clr clu co- coa cob coc cog coh col coo cor cou cra crb crc crg crh crl cro crr cru cua cub cuc cug cuh cul cuo cur cuu gaa gab gac gag gah gal gao gar gau gba gbc gbg gbh gbl gbo gbr gbu gca gcb gcc gcg gch gcl gco gcr gcu gga ggb ggc ggg ggh ggo ggr ggu gha ghb ghc ghg ghh ghl gho ghr gla glb glc glg glh gll glo glr glu goa gob goc gog goh gol goo gor gou gra grb grc grg grh grl gro grr gru gu- gua gub guc gug gul guo gur guu haa hab hac hag hah hal hao har hau hba hbb hbc hbg hbh hbl hbo hbr hbu hca hcb hcc hcg hch hcl hco hcr hga hgb hgc hgg hgh hgl hgo hgr hgu hha hhb hhc hhg hhh hhl hho hhr hhu hla hlb hlc hlg hlh hll hlo hlr hlu hoa hob hoc hog hoh hol hoo hor hou hr- hra hrb hrc hrg hrh hrl hro hrr hru hua hub huc hug huh hul huo hur huu la- laa lab lac lag lah lal lao lar lau lba lbb lbc lbg lbh lbl lbo lbr lbu lca lcb lcc lcg lch lcl lco lcr lcu lga lgb lgc lgg lgh lgl lgo lgr lgu lha lhb lhc lhh lho lhr lhu lla llb llc llg lll llo llr llu loa lob loc log loh lol loo lor lou lra lrb lrc lrg lrh lro lrr lru lua lub luc lug luh lul luo lur luu oaa oab oac oag oah oal oao oar oau ob- oba obb obc obg obh obl obo obr obu oc- oca ocb occ ocg och ocl oco ocr ocu oga ogc ogg ogh ogl ogo oha ohc ohg ohh ohl oho ohr ohu ola olb olc olg oll olo olu oo- ooa oob ooc oog ooh ool ooo oor or- ora orb orc org orh orl oro orr oru ou- oua ouc ouh oul ouo our ra- raa rab rac rag rah ral rao rar rau rba rbb rbc rbg rbh rbl rbo rbr rbu rca rcb rcc rcg rch rcl rco rcr rcu rga rgb rgc rgg rgh rgo rgr rh- rha rhb rhc rhg rhh rhl rho rhr rhu rla rlc rlg rlh rll rlo rlr rlu roa rob roc rog roh rol roo ror rou rra rrb rrc rrg rrh rrl rrr rru rua rub ruc rug ruh ruo rur ruu ua- uaa uab uac uag uah ual uao uar uau uba ubb ubc ubg ubh ubl ubo ubr ubu uca ucb ucc ucg uch ucl uco ucr ucu uga ugb ugc ugg ugh ugl ugo ugr ugu uha uhb uhc uhh uhl uho uhr uhu ula ulb ulc ulg ull ulo ulr ulu uoa uob uoc uog uol uoo uor ur- ura urb urc urg url uro urr uru uua uuc uug uur uuu