a-be a-fu a-ya aaaa aaab aaae aaaf aaar aaba aabb aaby aaea aafa aafb aaff aara aare aaru abaa abab abae abaf abar abau abay abb- abba abbb abbe abbr abby abee aber abey abff abra abry abua abue abuf abuy abye abyy aeaf aeby aeer aer- aera aery afaa afar afee afer affa affy afr- afra afre afru afua afue afye arab arae araf arar arau aray arba arbe arby area aree aref areu arey arfa arfb arff arfu arr- arra arre arrr arru arry arua arub arue ary- arya arye auaa aube auby auer aufe aur- aura aure ayar ayay ayer ayra ayre ayry ayub ayur ayya baaa baaf baar baba babb babe babr babu baby baer baff bar- bara barb bare barf barr baru bary bau- bauf baur baya baye bayu bbau bbay bbbb bbeb beaf bear beau beay beba bebb bebe beby beeb beef beer beey befa befe beff bera bere berr beru bery beur beya beye brab brae braf brau bray brea breb bree bref brer brey brfu brrr brue bry- brya brye buar buba bubb bube bubu buea buer bueu bufe buff bufr bur- bura burb bure burr buru bury buyu byar byer byre eaaf eaba eafb eara earb eare eary ebay ebba ebbr ebby eber ebru ebur ebya eeby eeea eeee eefa eefe eera eery efab efbr effa effy efua efya eraf erau eray erba erbb erbe ereb erer erra erre erua erub erur erya erye euba euer eur- eura eure eury eyeb eyer eyey eyra eyre eyry eyyr faaa faba fabe fabu faeb fafa fafe faff fara farb fare farr faru fary faue faur faya faye fayu fbar feaf fear feba feeb feer fefe feff fera ferb fere ferr feru fery feyr ffar ffee ffff ffrr frab frae frau fray frea free frey frub frue frya frye fuar fubb fubu fuff fufu fur- fura fure furr fury fuyu fyar fyfe fyra fyre fyry raab raaf raba rabb rabe rabu raby raef raer rafa rafe raff rara rarb rare rarf rary raua raub raue rauf raya raye rayr rayu rbaf rbbb rbbr rea- reae reaf rear reau reay reba rebb rebe rebu reeb reef refe reff refr refu rera rere reru rery reue reuf reuu reya reye rfae rfef rrrr ruba rubb rube rubu ruby ruer rufa rufe ruff rura rure ruru ruya ryba rybe ryeb ryfe ryff ryue ryyf uafa uaru uaua ubar ubay ubba ubbe uber ubra ueba uefa ufay ufer uffa uffe ufra urau uray urba urbe ure- urea urey urfa urfe urff urra urre urry urur uuuu uyar uyea uyre yaaf yaar yaba yafa yafe yaff yara yarb yare yarr yaru yary yaue yaya yayu yber ybry ye-u yeaf year yeer yefe yeff yerb yere yerr yery yeue yeye yeyr yuba yubu yuea yuer yuff yufu yura yure yury yuya yuye yuyu yyfe yyff yyyy