-er a-a a-b a-t a-z aaa aab aae aag aak aar aat aau aaz ab- aba abb abe abg abk abr abt abu abz aea aeb aee aeg aek aer aet aeu aez ag- aga agb age agg agk agr agt agu agz aka akb ake akg akk akr aku ar- ara arb are arg ark arr art aru arz at- ata atb ate atg atr att atu atz au- aua aub aue aug auk aur aut auz az- aza azb aze azg azt azu azz b-u baa bab bae bag bak bar bat bau baz bba bbb bbe bbg bbk bbr bbt bbu be- bea beb bee beg bek ber bet beu bez bga bgb bge bgg bgk bgr bgt bgu bgz bka bkb bke bkg bkk bkr bkt bra brb bre brg brk brr brt bru brz bta btb bte btg btk btr btt btu btz bua bub bue bug buk bur but buu buz bza bze bzr bzu bzz eaa eab eae eag eak ear eat eau eaz eba ebb ebe ebg ebk ebr ebt ebu eea eeb eee eeg eek eer eet ega egb ege egg egr egt egu eka ekb eke ekg ekr ekt eku era erb ere erg erk err ert eru erz eta etb ete etg etk etr ett etu etz eu- eua eub eue eug eur eut eze ezr ezz gaa gab gae gag gak gar gat gau gaz gba gbe gbg gbk gbr gbt gbu gbz ge- gea geb gee geg gek ger get geu gez gga ggb ggg ggr ggt ggu ggz gka gkb gkt gra grb gre grg grk grr grt gru gta gtb gte gtg gtk gtr gtt gtu gu- gua gub gue gug guk gur gut guu guz gza gzr gzu k-t k-z ka- kaa kab kae kag kak kar kat kau kaz kba kbb kbe kbk kbr kbu kbz ke- kea keb kee keg kek ker ket kez kga kgb kgu kkb kke kkk kkr kkt kku kra krg krk krr krt kru kta ktb kte ktg ktk ktr ktt ktu kub kue kug kuk kur kut kuu ra- raa rab rae rag rak rar rat rau raz rba rbb rbe rbg rbk rbr rbt rbu re- rea reb ree reg rek rer ret reu rez rga rgb rge rgg rgk rgr rgt rkb rke rkg rkk rkt rku rkz rra rrb rrg rrk rrr rrt rru rta rtb rte rtg rtk rtr rtt rtu rtz rua rub rue rug ruk rur rut ruu ruz rza rzb rze taa tab tae tag tak tar tat tau taz tba tbb tbe tbg tbk tbr tbt tbu tbz te- tea teb tee teg tek ter tet teu tez tga tgb tge tgg tgk tgr tgt tgu tgz tka tkb tke tkg tkk tkr tkt tkz tra trb tre trg trk trr trt tru trz tta ttb tte ttg ttk ttr ttt ttu tua tub tue tug tuk tur tut tuu tuz tza tze tzu ua- uaa uab uae uag uak uar uat uau uaz uba ubb ube ubg ubk ubr ubt ubu uea ueb uee ueg uer uet uga ugb uge ugg ugk ugr ugt ugu uka ukb uke ukk ukr uku ukz ur- ura urb ure urg urk urr urt uru urz uta utb ute utk utr utt utu utz uua uue uug uur uut uuu uza uzb uzu z-g zaa zab zag zak zar zat zaz zbb zbr zbt zea zeb zee zek zer zet zez zgb zgg zka zta zte ztr zub zug zuk zur zut zuz zzr zzt zzz