a-be aaaa aaab aaae aaal aaba aabb aabl aaea aala aale aall aalo aaoe aaoo abaa abab abae abal abb- abba abbb abbe abbo abee abel abla able ablo aboa abob abol aboo aela alaa alae alal alao alb- alba albe albo alea alee aleo all- alla alle alll allo aloa aloe alol aloo aoba aola aole baaa baal baba babb babe babo bael bala bale ball balo baol bbbb bbeb bblb beal beba bebb bebe bebo beeb beel bela bele bell belo beo- blaa blab blae blea bleb blee bleo blob bloo boab boal boba bobb bobe bobo boea boee boel boeo bola bole boll bolo boob booe bool e-la eaba eala eale ebal ebba ebbo ebel ebla eboe ebol eboo eeea eeee eele el-b elab elal elba elbe elbo elea elee eleo ella elle ello eola eole eolo laaa laal laba labe labo lael lala lale lall lalo leaa leal leao leba lebo leea leel lela lele lell lelo llao llll lloa lloo lob- loba lobb lobe lobo loeb lola lole loll lolo loob looe lool o-eo oall obal obba obbo obea obel obla oble oboe obol oela oele olba olbo ole- olea oleo olla olle ollo ooaa ooba oobe oola oolo oooo