-er a-a a-b a-t a-z aaa aab aae aag aan aar aat aau aaz ab- aba abb abe abg abn abr abt abu abz aea aeb aee aeg aen aer aet aeu aez ag- aga agb age agg agn agr agt agu agz an- ana anb ane ang ann anr ant anu anz ar- ara arb are arg arn arr art aru arz at- ata atb ate atg atn atr att atu atz au- aua aub aue aug aun aur aut auz az- aza azb aze azg azn azt azu azz b-u baa bab bae bag ban bar bat bau baz bba bbb bbe bbg bbn bbr bbt bbu be- bea beb bee beg ben ber bet beu bez bga bgb bge bgg bgn bgr bgt bgu bgz bna bnb bne bng bnn bnr bnt bnu bnz bra brb bre brg brn brr brt bru brz bta btb bte btg btn btr btt btu btz bua bub bue bug bun bur but buu buz bza bze bzn bzr bzu bzz eaa eab eae eag ean ear eat eau eaz eba ebb ebe ebg ebn ebr ebt ebu eea eeb eee eeg een eer eet ega egb ege egg egn egr egt egu en- ena enb ene eng enn enr ent enu enz era erb ere erg ern err ert eru erz eta etb ete etg etn etr ett etu etz eu- eua eub eue eug eun eur eut eze ezr ezz gaa gab gae gag gan gar gat gau gaz gba gbe gbg gbn gbr gbt gbu gbz ge- gea geb gee geg gen ger get geu gez gga ggb ggg ggn ggr ggt ggu ggz gna gnb gne gnn gnr gnt gnu gra grb gre grg grn grr grt gru gta gtb gte gtg gtn gtr gtt gtu gu- gua gub gue gug gun gur gut guu guz gza gzr gzu naa nab nae nag nan nar nat nau naz nba nbb nbe nbg nbn nbr nbt nbu ne- nea neb nee neg nen ner net neu nez nga ngb nge ngg ngn ngt ngu nna nnb nne nng nnn nnt nnu nnz nra nrb nre nrg nrn nrr nrt nru nrz nta ntb nte ntg ntn ntr ntt ntu ntz nua nub nue nug nun nur nut nuu nzb nze nzg nzz ra- raa rab rae rag ran rar rat rau raz rba rbb rbe rbg rbn rbr rbt rbu re- rea reb ree reg ren rer ret reu rez rga rgb rge rgg rgn rgr rgt rna rnb rng rnn rnr rnt rnu rnz rra rrb rrg rrn rrr rrt rru rta rtb rte rtg rtn rtr rtt rtu rtz rua rub rue rug run rur rut ruu ruz rza rzb rze taa tab tae tag tan tar tat tau taz tba tbb tbe tbg tbn tbr tbt tbu tbz te- tea teb tee teg ten ter tet teu tez tga tgb tge tgg tgn tgr tgt tgu tgz tna tnb tne tng tnn tnr tnt tnz tra trb tre trg trn trr trt tru trz tta ttb tte ttg ttn ttr ttt ttu tua tub tue tug tun tur tut tuu tuz tza tze tzu ua- uaa uab uae uag uan uar uat uau uaz uba ubb ube ubg ubn ubr ubt ubu uea ueb uee ueg uen uer uet uga ugb uge ugg ugn ugr ugt ugu un- una unb une ung unn unr unt unu ur- ura urb ure urg urn urr urt uru urz uta utb ute utn utr utt utu utz uua uue uug uun uur uut uuu uza uzb uzu z-g zaa zab zag zan zar zat zaz zbb zbr zbt zea zeb zee zen zer zet zez zgb zgg zne znn zta zte ztr zub zug zun zur zut zuz zzr zzt zzz