-er a-a a-b a-t a-z aaa aab aae aak aao aar aat aau aaz ab- aba abb abe abk abo abr abt abu abz aea aeb aee aek aeo aer aet aeu aez aka akb ake akk ako akr aku aoa aob aoe aok aoo aor aot aou ar- ara arb are ark aro arr art aru arz at- ata atb ate ato atr att atu atz au- aua aub aue auk auo aur aut auz az- aza azb aze azo azt azu azz b-u baa bab bae bak bao bar bat bau baz bba bbb bbe bbk bbo bbr bbt bbu be- bea beb bee bek beo ber bet beu bez bka bkb bke bkk bko bkr bkt boa bob boe bok boo bor bot bou boz bra brb bre brk bro brr brt bru brz bta btb bte btk bto btr btt btu btz bua bub bue buk buo bur but buu buz bza bze bzo bzr bzu bzz eaa eab eae eak eao ear eat eau eaz eba ebb ebe ebk ebo ebr ebt ebu eea eeb eee eek eeo eer eet eka ekb eke eko ekr ekt eku eo- eoa eob eoe eok eoo eor eot eou era erb ere erk ero err ert eru erz eta etb ete etk eto etr ett etu etz eu- eua eub eue eur eut eze ezo ezr ezz k-t k-z ka- kaa kab kae kak kao kar kat kau kaz kba kbb kbe kbk kbo kbr kbu kbz ke- kea keb kee kek keo ker ket kez kkb kke kkk kkr kkt kku koa kob koe kok koo kor kot kou koz kra krk kro krr krt kru kta ktb kte ktk kto ktr ktt ktu kub kue kuk kur kut kuu kzo oaa oab oae oak oao oar oat oau ob- oba obb obe obk obo obr obt obu oea oeb oee oeo oer oet oka okb oke okk oko okr oku oo- ooa oob ook ooo oor oot or- ora orb ore ork oro orr ort oru orz ot- ota otb ote otk oto otr ott otu otz ou- oua oue ouk ouo our out oza oze ozo ozt ozu ozz ra- raa rab rae rak rao rar rat rau raz rba rbb rbe rbk rbo rbr rbt rbu re- rea reb ree rek reo rer ret reu rez rkb rke rkk rko rkt rku rkz roa rob roe rok roo ror rot rou roz rra rrb rrk rrr rrt rru rta rtb rte rtk rto rtr rtt rtu rtz rua rub rue ruk ruo rur rut ruu ruz rza rzb rze rzo taa tab tae tak tao tar tat tau taz tba tbb tbe tbk tbo tbr tbt tbu tbz te- tea teb tee tek teo ter tet teu tez tka tkb tke tkk tko tkr tkt tkz to- toa tob toe tok too tor tot tou toz tra trb tre trk tro trr trt tru trz tta ttb tte ttk tto ttr ttt ttu tua tub tue tuk tuo tur tut tuu tuz tza tze tzu ua- uaa uab uae uak uao uar uat uau uaz uba ubb ube ubk ubo ubr ubt ubu uea ueb uee uer uet uka ukb uke ukk ukr uku ukz uoa uob uoe uok uoo uor uot ur- ura urb ure urk uro urr urt uru urz uta utb ute utk uto utr utt utu utz uua uue uur uut uuu uza uzb uzo uzu zaa zab zak zao zar zat zaz zbb zbr zbt zea zeb zee zek zeo zer zet zez zka zo- zoa zob zoe zok zoo zor zot zou zro zta zte ztr zub zuk zur zut zuz zzr zzt zzz