-er a-a a-b aaa aab aae aaj aak aao aar ab- aba abb abe abj abk abo abr aea aeb aee aej aek aeo aer aja ajb aje ajj ajk ajo ajr aka akb ake akj akk ako akr aoa aob aoe aoj aok aoo aor ar- ara arb are arj ark aro arr baa bab bae baj bak bao bar bba bbb bbe bbk bbo bbr be- bea beb bee bek beo ber bja bjj bjk bjr bka bkb bke bkk bko bkr boa bob boe boj bok boo bor bra brb bre brj brk bro brr eaa eab eae eaj eak eao ear eba ebb ebe ebj ebk ebo ebr eea eeb eee eek eeo eer eja ejo eka ekb eke eko ekr eo- eoa eob eoe eok eoo eor era erb ere erk ero err jaa jab jae jaj jak jao jar jba jbj jbk jbo jbr jea jeb jee jej jek jeo jer jja jjb jjj jjk jjr jka jkb jkk jko jkr joa job joe joj jok joo jor jra jrb jrk jro jrr ka- kaa kab kae kaj kak kao kar kba kbb kbe kbk kbo kbr ke- kea keb kee kek keo ker kjb kje kjr kkb kke kkk kkr koa kob koe kok koo kor kra krk kro krr oaa oab oae oaj oak oao oar ob- oba obb obe obj obk obo obr oea oeb oee oeo oer oja ojb oje ojo oka okb oke okj okk oko okr oo- ooa oob ook ooo oor or- ora orb ore ork oro orr ra- raa rab rae raj rak rao rar rba rbb rbe rbk rbo rbr re- rea reb ree rek reo rer rja rjk rjr rkb rke rkk rko roa rob roe roj rok roo ror rra rrb rrk rrr

a-ak a-be a-ok aaaa aaab aaae aaar aaba aabb aaea aaka aake aaoe aaoo aara aare aaro abaa abab abae abaj abak abar abb- abba abbb abbe abbo abbr abee aber aboa abob abok aboo abor abra abro aeer aeka aer- aera aero ajab ajak ajao ajar ajba ajee ajka ajob ajoo akaa akae akao akar akee aker akka akko akok akr- akra akre aoba aora aorb arab arae arak arar arba arbe area aree arek areo arja arje arjo arka arke arko aroa arob aroe aroo aror arr- arra arre arrk arro arrr baaa baak baar baba babb babe babo babr baek baer baja bak- baka bake bako bakr bar- bara barb bare bark baro barr bbbb bbeb beak bear beba bebb bebe bebo beeb beej beek beer beja beka beke beko beo- beok beor bera bere berk bero berr bjoa boab boak boar boba bobb bobe bobo boea boee boeo boer bojo boka boke boko boob booe book boor bor- bora bore borj bork boro borr brab brae braj brak brao brea breb bree brek breo brer brje brka brkb broa brob broe brok broo bror brrr eaba eara earb eare earo ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eeka eeke eera eero ejer ejob ejoo eka- ekab ekeb ekek eker ekka ekoa eoka eora eore erba erbb erbe ereb erer erja erke erob eroe eroo erra erre erro j-ro jaak jaar jaba jabo jabr jaer jaja jaka jake jako jara jare jark jaro jarr jbaa jbar jbob jear jebb jebe jeer jeke jeok jera jere jerk jero jjar joab joao joar joba jobe jobo joea joee jojo joka jokb joke jook joor jora jore jork joro jrbr kaaa kaab kaak kaar kaba kabb kabe kabo kabr kaeo kaer kaja kajb kaje kajk kajo kajr kaka kake kakj kakk kako kaoa kaok kaor kara karb kare karj kark karo karr kbaa kbab kbae kbak kbar kbba kbbb kbbe kbbk kbbo kbbr kbeb kbee kbek kbeo kber kbja kbjk kbkb kbkk kbko kbkr kboa kbob kboe kbok kboo kbra kbrb kbre kbrj kbrk kbro kea- keak kear keba kebb kebe kebr keek keer kejb kejj kejo keka kekb keke keko keoj keok ker- kera kerb kere kerk kero kerr kjaa kjae kjak kjbb kjbr kjee kjer kjjj kjjk kjjo kjjr kjke kjkj kjkk kjoe kjoj kjok kjor kjrb kkaa kkar kkba kkbb kkbe kkbj kkbo kkbr kkea kkjb kkjk kkkj kkkk kkoa kkob kkoj kkoo kkor kkrb kkre kkrk kkro kkrr koab koae koak koar koba kobb kobe kobk kobo kobr koea koja kojb koje kojo koka kokb koke kokk koko kokr koob kook kooo koor kora korb kore kork koro korr krab krae kraj krak krar krba krbb krbe krbk krbr krea kreb kree krej krek kreo krjb krje krjk krjo krka krke krkk krko krkr kroa krob kroe krok kroo kror krrb krre krrk krro krrr o-eo oaer oake oara oare obak obba obbo obea ober obja obkb oboe obok obor obra obre obro oera oere ojak ojea ojok okak okej oker okja okka okko okok okor okra okre okro ooaa ooak ooba oobe ooer oooo oora oore orab orae orak orao orar orba orbb orbe orbo ore- orea oreb orek oreo orer orka orke orko oro- oroe orok oror orra orro raab raaj raak raba rabb rabe rabk rabo raer raja raje rajo raka rake rakk raob raok rara rarb rare rark raro rbbb rbbr rea- reae reak reao rear reba rebb rebe rebk rebo reeb reek reja reka reke reko rera rere rero roab roak roar rob- roba robb robe robo roea roer roja roje rojo roka roke rokk roko rokr roob rook roor rora rore rork roro rrrr

-aaa- aaaee aabaa aabba aabra aajke aaker aakko aakre abaab ababa ababe abaer abaja abajo abaka abake abako abara abare abbaj abbar abear abeba abebe abeer abekr abera abere aberr abjar abkar abkoo aboab abobo aboke abook abora abore abrak abrar abrek aeaea aebbe aereo aero- aeroe ajaja ajaka ajara ajeeb ajoba ajoke ajrak aka-e akaba akabo akaoa akare akbar akera akero akker akkra akobo akoka akoko akrak akrar akro- ar-ab arab- araba arabe arabo araea arake arara arare arbab arbar arbee arber