a-be aaaa aaab aaae aaal aaar aaba aabb aabl aaea aala aale aall aara aare abaa abab abae abal abar abb- abba abbb abbe abbr abee abel aber abla able abra aeer aela aer- aera alaa alae alal alar alb- alba albe alea alee aler all- alla alle alll allr arab arae aral arar arba arbe area aree arel arla arle arr- arra arre arrr baaa baal baar baba babb babe babr bael baer bala bale ball bar- bara barb bare barr bbbb bbeb bblb beal bear beba bebb bebe beeb beel beer bela bele bell bera bere berr blaa blab blae blea bleb blee brab brae brea breb bree brel brer brrr e-la eaba eala eale eara earb eare earl ebal ebba ebbr ebel eber ebla eeea eeee eele eera el-b elab elal elar elba elbe elea elee eler ella elle elra eral erba erbb erbe ereb erel erer erla erle erll erra erre laaa laal laar laba labe labr lael laer lala lale lall lara larb lare larr lbar lblr leaa leal lear leba leea leel leer lela lele lell lera lere llll lral lrba lrrr raab raba rabb rabe rabl rael raer rala ralb rale rall rara rarb rare rbbb rbbr rble rea- reae real rear reba rebb rebe reeb reel rela relb rele rell rera rere rlab rlee rrle rrrr