a-be aaaa aaab aaae aaal aaba aabb aabl aaea aala aale aall abaa abab abae abal abax abb- abba abbb abbe abee abel abla able aela alaa alae alal alb- alba albe alea alee alex all- alla alle alll alxa axal axel axle ba-x baaa baal baba babb babe bael bala bale ball bbbb bbeb bblb beal beba bebb bebe beeb beel bela bele bell blaa blab blae blea bleb blee e-la eaba eala eale eaxl ebal ebba ebel ebla eeea eeee eele el-b elab elal elba elbe elea elee elex ella elle exa- exel laaa laal laax laba labe lael lala lale lall laxa laxe leaa leal leba leea leel lela lele lell lexa lexx llll lxxx xala xall xbee xbel xela xexe xxxx