-er a-a a-b a-t a-z aaa aab aae aak aao aar aat aaz ab- aba abb abe abk abo abr abt abz aea aeb aee aek aeo aer aet aez aka akb ake akk ako akr aoa aob aoe aok aoo aor aot ar- ara arb are ark aro arr art arz at- ata atb ate ato atr att atz az- aza azb aze azo azt azz baa bab bae bak bao bar bat baz bba bbb bbe bbk bbo bbr bbt be- bea beb bee bek beo ber bet bez bka bkb bke bkk bko bkr bkt boa bob boe bok boo bor bot boz bra brb bre brk bro brr brt brz bta btb bte btk bto btr btt btz bza bze bzo bzr bzz eaa eab eae eak eao ear eat eaz eba ebb ebe ebk ebo ebr ebt eea eeb eee eek eeo eer eet eka ekb eke eko ekr ekt eo- eoa eob eoe eok eoo eor eot era erb ere erk ero err ert erz eta etb ete etk eto etr ett etz eze ezo ezr ezz k-t k-z ka- kaa kab kae kak kao kar kat kaz kba kbb kbe kbk kbo kbr kbz ke- kea keb kee kek keo ker ket kez kkb kke kkk kkr kkt koa kob koe kok koo kor kot koz kra krk kro krr krt kta ktb kte ktk kto ktr ktt kzo oaa oab oae oak oao oar oat ob- oba obb obe obk obo obr obt oea oeb oee oeo oer oet oka okb oke okk oko okr oo- ooa oob ook ooo oor oot or- ora orb ore ork oro orr ort orz ot- ota otb ote otk oto otr ott otz oza oze ozo ozt ozz ra- raa rab rae rak rao rar rat raz rba rbb rbe rbk rbo rbr rbt re- rea reb ree rek reo rer ret rez rkb rke rkk rko rkt rkz roa rob roe rok roo ror rot roz rra rrb rrk rrr rrt rta rtb rte rtk rto rtr rtt rtz rza rzb rze rzo taa tab tae tak tao tar tat taz tba tbb tbe tbk tbo tbr tbt tbz te- tea teb tee tek teo ter tet tez tka tkb tke tkk tko tkr tkt tkz to- toa tob toe tok too tor tot toz tra trb tre trk tro trr trt trz tta ttb tte ttk tto ttr ttt tza tze 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 zro zta zte ztr zzr zzt zzz

a-ak a-be a-ok aaaa aaab aaae aaar aaba aabb aabt aaea aaka aake aaoe aaoo aara aare aaro aart aata aatk aatt abaa abab abae abak abar abat abb- abba abbb abbe abbo abbr abbt abee aber abet abez aboa abob abok aboo abor abot abra abro abta abza aeer aeka aer- aera aero aeta aeto aetr aett akaa akae akao akar akee aker akka akko akok akot akr- akra akre akte aoba aora aorb aort arab arae arak arar arat arba arbe area aree arek areo aret arka arke arko aroa arob aroe aroo aror aroz arr- arra arre arrk arro arrr arrt arta arte arto artr artz arza arzo at-t ataa atab atae atak atar atat atea atee ateo ater atez atka atkt atob atoe atok ator atot atoz atra atre atrk atro atta atte atto attr aza- azab azar azat azaz azer azet azo- azoo azor azot azra azza azzo baaa baak baar baat baaz baba babb babe babo babr baek baer baez bak- baka bake bako bakr bakt bar- bara barb bare bark baro barr bart barz bata bate bato batt batz baza baze bazo bbbb bbeb bbet beak bear beat beba bebb bebe bebo beeb beek beer beet beka beke beko beo- beok beor beot bera bere berk bero berr bert beta bete beto bett betz beze boab boak boar boat boaz boba bobb bobe bobo boea boee boeo boer boet boka boke boko boob booe book boor boot booz bor- bora bore bork boro borr bort borz bota botb bote boto bott boza bozo brab brae brak brao brat braz brea breb bree brek breo brer bret brez brka brkb broa brob broe brok broo bror brot broz brrr brza btaa btek btob btor btrt bttb bzer bzoe bzrk bzzt bzzz eaba eara earb eare earo eart eata eate ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eeka eeke eera eero eeta eete eeze eka- ekab ekeb ekek eker eket ekka ekoa ekta eoka eora eore eota eoto erat eraz erba erbb erbe ereb erer eret erez erke erob eroe eroo erra erre erro erta ertz etak etat etbr etee eter etka etoe etok etra etre etro etta ette etto ezek ezer ezra ezzo kaaa kaab kaak kaar kaat kaba kabb kabe kabo kabr kabz kaeo kaer kaet kaka kake kakk kako kakt kaoa kaok kaor kara karb kare kark karo karr kart karz kat- kata katb kate katk kato katr katt katz kaza kaze kazo kazr kazz kbaa kbab kbae kbak kbar kbat kbaz kbba kbbb kbbe kbbk kbbo kbbr kbbt kbbz kbeb kbee kbek kbeo kber kbet kbez kbkb kbkk kbko kbkr kbkz kboa kbob kboe kbok kboo kbot kboz kbra kbrb kbre kbrk kbro kbrt kbrz kbta kbtb kbte kbtk kbto kbtr kbtt kbtz kbze kbzo kbzt kbzz kea- keak kear keat keaz keba kebb kebe kebr kebt keek keer keet keka kekb keke keko keok ker- kera kerb kere kerk kero kerr kert kerz ket- keta kete ketk keto ketr kett keza kezb keze kezr kezz kkaa kkar kkat kkba kkbb kkbe kkbo kkbr kkbt kkbz kkea kkez kkkk kkoa kkob kkoo kkor kkot kkoz kkrb kkre kkrk kkro kkrr kkrt kkrz kktk kktz kkzz koab koae koak koar koaz koba kobb kobe kobk kobo kobr koea koka kokb koke kokk koko kokr kokz koob kook