a-be aaaa aaab aaae aaal aaap aaba aabb aabl aabp aaea aaep aala aale aall aapa aapl abaa abab abae abal abap abax 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 alex all- alla alle alll alpa alpe alpl alxa apal apap apax apba apea apel apep apex apl- apla aple aplp aplx appa appl appx axal axel axle ba-x 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 eaxl ebal ebba ebel ebla eeea eeee eele el-b el-p elab elal elba elbe elea elee elex ella elle elpe epaa epee eple epll eppa eppp epxp exa- exel laaa laal laap laax laba labe lael lala lale lall lapa lapb lape lapp laxa laxe leaa leal leap leba leea leel leep lela lele lell lepa lepe lepp lexa lexx llll lpla lppl lxxx paal paap paba pabx paea paep pala pale pall palp papa papb pape papp pbpa peab peal peap peax peba pebl peel peep pel- pela pelb pele pell pepa pepe plaa plab plap plax ple- plea pleb plee plex plpa plpp ppal ppap pple pppa pppp xala xall xbee xbel xela xexe xlpe xpax xxxx