-er a-a a-b a-t aaa aab aae aaf aaj aak aao aar aat aau ab- aba abb abe abf abj abk abo abr abt abu aea aeb aee aef aej aek aeo aer aet aeu af- afa afb afe aff afj afk afo afr aft afu aja ajb aje ajf ajj ajk ajo ajr ajt aju aka akb ake akj akk ako akr aku aoa aob aoe aof aoj aok aoo aor aot aou ar- ara arb are arf arj ark aro arr art aru at- ata atb ate atf ato atr att atu au- aua aub aue auf auj auk auo aur aut b-u baa bab bae baf baj bak bao bar bat bau bba bbb bbe bbf bbk bbo bbr bbt bbu be- bea beb bee bef bek beo ber bet beu bfa bfb bfe bff bfj bfo bfr bft bfu bja bjf bjj bjk bjr bjt bju bka bkb bke bkf bkk bko bkr bkt boa bob boe bof boj bok boo bor bot bou bra brb bre brf brj brk bro brr brt bru bta btb bte btf btk bto btr btt btu bua bub bue buf buj buk buo bur but buu eaa eab eae eaf eaj eak eao ear eat eau eba ebb ebe ebf ebj ebk ebo ebr ebt ebu eea eeb eee eef eek eeo eer eet ef- efa efb efe eff efo efr eft eja ejf ejo ejt eju eka ekb eke ekf eko ekr ekt eku eo- eoa eob eoe eof eok eoo eor eot eou era erb ere erf erk ero err ert eru eta etb ete etf etj etk eto etr ett etu eu- eua eub eue euf euj eur eut faa fab fae faf faj fak fao far fat fau fba fbb fbe fbf fbk fbo fbr fbt fbu fea feb fee fef fek feo fer fet feu ffa ffe fff ffk ffo ffr fft ffu fja fjb fka fkb fkf fkj fkk fkt foa fob foe fof fok foo for fot fou fra frb fre frf frj frk fro frr frt fru fta ftb fte ftf ftk fto ftr ftt ftu fua fub fue fuf fuk fuo fur fut fuu jaa jab jae jaf jaj jak jao jar jat jau jba jbf jbj jbk jbo jbr jbt jbu jea jeb jee jef jej jek jeo jer jet jeu jfa jfb jfe jff jfj jfk jfo jfr jft jja jjb jjf jjj jjk jjr jju jka jkb jkk jko jkr jkt jku joa job joe jof joj jok joo jor jot jou jra jrb jrf jrk jro jrr jrt jta jtb jte jtf jtk jtr jtt jtu jub jue juf juk juo jur jut k-t ka- kaa kab kae kaf kaj kak kao kar kat kau kba kbb kbe kbf kbk kbo kbr kbu ke- kea keb kee kef kek keo ker ket kfa kff kfo kfu kjb kje kjr kju kkb kke kkk kkr kkt kku koa kob koe kof kok koo kor kot kou kra krf krk kro krr krt kru kta ktb kte ktf ktj ktk kto ktr ktt ktu kub kue kuj kuk kur kut kuu oaa oab oae oaf oaj oak oao oar oat oau ob- oba obb obe obf obj obk obo obr obt obu oea oeb oee oef oeo oer oet of- ofa ofb ofe off ofo ofr oft ofu oja ojb oje ojo oju oka okb oke okj okk oko okr oku oo- ooa oob oof ook ooo oor oot or- ora orb ore orf ork oro orr ort oru ot- ota otb ote otf otk oto otr ott otu ou- oua oue ouf ouk ouo our out ra- raa rab rae raf raj rak rao rar rat rau rba rbb rbe rbf rbk rbo rbr rbt rbu re- rea reb ree ref rek reo rer ret reu rfa rfb rfe rff rfj rfk rfo rfr rft rfu rja rjf rjk rjr rkb rke rkf rkk rko rkt rku roa rob roe rof roj rok roo ror rot rou rra rrb rrf rrk rrr rrt rru rta rtb rte rtf rtj rtk rto rtr rtt rtu rua rub rue ruf ruk ruo rur rut ruu taa tab tae taf taj tak tao tar tat tau tba tbb tbe tbf tbj tbk tbo tbr tbt tbu te- tea teb tee tef tej tek teo ter tet teu tfa tfb tfe tff tfj tfk tfo tfr tft tfu tje tjf tjo tjr tju tka tkb tke tkk tko tkr tkt to- toa tob toe tof toj tok too tor tot tou tra trb tre trf trk tro trr trt tru tta ttb tte ttf ttk tto ttr ttt ttu tua tub tue tuf tuj tuk tuo tur tut tuu ua- uaa uab uae uaf uaj uak uao uar uat uau uba ubb ube ubf ubk ubo ubr ubt ubu uea ueb uee uef uer uet ufa ufe uff ufj ufo ufr uft ufu ujo uka ukb uke ukf ukk ukr uku uoa uob uoe uoj uok uoo uor uot ur- ura urb ure urf urk uro urr urt uru uta utb ute utf utj utk uto utr utt utu uua uue uur uut uuu

a-ak a-be a-fu a-ok aaaa aaab aaae aaaf aaar aaba aabb aabt aaea aafa aafb aaff aaka aake aaku aaoe aaoo aara aare aaro aart aaru aata aatf aatk aatt abaa abab abae abaf abaj abak abar abat abau abb- abba abbb abbe abbo abbr abbt abee aber abet abff aboa abob abof abok aboo abor abot abou abra abro abta abtu abua abue abuf abuk abut aeaf aeer aeka aer- aera aero aeta aetf aeto aetr aett afaa afak afao afar afat afee afek afer afet affa affo afft afka afkr afoa afoe afoo afor afr- afra afre afro afru afta afte afua afue ajab ajak ajao ajar ajat ajba ajee ajef ajet ajka ajkf ajob ajoo ajot ajou ajur akaa akae akao akar akee aker akeu akka akko akku akok akot akr- akra akre akte