a-be aaaa aaab aaad aaae aaaf aaar aaba aabb aabd aada aade aaea aafa aafb aafd aaff aara aard aare abaa abab abad abae abaf abaj abar abb- abba abbb abbe abbr abda abed abee aber abff abra adaa adab adad adae adar adba adda addd adde addr adea adeb adee ader adfa adja adra adre aeaf aede aeer aer- aera aerd afaa afad afar afdb afee afer affa afr- afra afre ajab ajar ajba ajed ajee ajef arab arad arae araf arar arba arbe arda arde ardf area ared aree aref arfa arfb arff arja arje arr- arra arre arrr baaa baad baaf baar baba babb babe babr bada badb badd bade badr baed baer baff baja bar- bara barb bard bare barf barr bbad bbbb bbdd bbeb bd-j bd-r bead beaf bear beba bebb bebe beda bede beeb beed beef beej beer befa befe beff beja bera berd bere berr bjfe brab brad brae braf braj brda brea breb bred bree bref brer brje brrr daab daad daae daar daba dabb dada dade daeb daer dafa dafe daff daja dara darb dard dare darf darj darr dbar dddd ddre dead deae deaf dear deba debe deda dedd dede deeb deed deef deer defe deff deja deje der- dera derb dere derf derj derr dfaf dfer dffa dfrf djed djer draa drab drad draf drar drba drda drea dred dree dref drra eaaf eaba eada eadb eadd eafb eara earb eard eare ebba ebbr ebed eber edad edar edda edde ede- edea eder edfa edra eede eeea eeee eefa eefe eera efab efbr efda effa ejer erad eraf erba erbb erbe erda erde erdf ereb ered erer erja erra erre faaa faad faba fabd fabe fada fadd fade faeb fafa fafe faff faja fajr fara farb fard fare farr fbar fead feaf fear feba feda fede feeb feed feer fefe feff fejd fera ferb ferd fere ferr ffar ffee ffff ffrr frab frad frae frea fred free jaaf jaar jaba jabr jada jade jaer jafa jaff jafr jaja jara jare jarf jarr jbaa jbar jdrf jear jebb jebe jeda jeed jeer jefe jeff jera jere jjad jjar jrbr raab raad raaf raaj raba rabb rabe rada radd rade radr raed raef raer rafa rafe raff raja raje rara rarb rare rarf rbaf rbbb rbbr rder rdfa rea- read reae reaf rear reba rebb rebe reda redd rede redr reeb reed reef refd refe reff refr reja rejd rera rerd rere rfae rfef rjdj rrad rred rrrr