a-be aaaa aaab aaae aaal aaap aaba aabb aabl aabp aaea aaep aala aale aall aapa aapl abaa abab abae abal abap abb- abba abbb abbe abee abel abla able abpa abpp aeap aela aelp al-p alaa alae alal alap alb- alba albe alea alee alep all- alla alle alll alpa alpe alpl apal apap apba apea apel apep apl- apla aple aplp appa appl baaa baal baba babb babe bael bala bale ball bapa bape bapp bbbb bbeb bblb beal beap beba bebb bebe beeb beel beep bela bele bell belp blaa blab blae blea bleb blee bpea bpel e-la eaba eala eale eapp ebal ebba ebel ebla eeea eeee eele el-b el-p elab elal elba elbe elea elee ella elle elpe epaa epee eple epll eppa eppp laaa laal laap laba labe lael lala lale lall lapa lapb lape lapp leaa leal leap leba leea leel leep lela lele lell lepa lepe lepp llll lpla lppl paal paap paba paea paep pala pale pall palp papa papb pape papp pbpa peab peal peap peba pebl peel peep pel- pela pelb pele pell pepa pepe plaa plab plap ple- plea pleb plee plpa plpp ppal ppap pple pppa pppp