a-be aaaa aaab aaae aaal aaap aaba aabb aabl aabp aabt aaea aaep aala aale aall aapa aapl aapt aata aatt abaa abab abae abal abap abat abb- abba abbb abbe abbt abee abel abet abla able abpa abpp abta aeap aela aelp aeta aett al-p alaa alae alal alap alat alb- alba albe alea alee alep alet all- alla alle alll alpa alpe alpl alta alte apal apap apat apba apea apel apep apet apl- apla aple aplp appa appl appt apta apte aptt at-l at-t ataa atab atae atal atap atat atea atee atel atep atla atle atta atte attp baaa baal baat baba babb babe bael bala bale ball balt bapa bape bapp bapt bata bate batt bbbb bbeb bbet bblb beal beap beat beba bebb bebe beeb beel beep beet bela bele bell belp belt beta bete bett blaa blab blae blat blbt blea bleb blee blet bpea bpel btaa btbp btla btlp bttb e-la eaba eala eale eapp eata eate ebal ebba ebel ebla eeea eeee eele eeta eete el-b el-p elab elal elat elba elbe elea elee elet ella elle elpe elta elte epaa epee eple epll eppa eppp epta epte etal etap etat etee etel etla etta ette laaa laal laap laat laba labe lael laet lala lale lall lapa lapb lape lapp lapt lata late latt leaa leal leap leat leba leea leel leep leet lela lele lell lepa lepe lepp lept leta lete lett llat llet llll lpla lppl lptb ltae ltap ltbl ltee ltpa paal paap paat paba pabt paea paep pala pale pall palp palt papa papb pape papp pata pate patt pbpa peab peal peap peat peba pebl peel peep peet pel- pela pelb pele pell pelt pepa pepe peta pete pett plaa plab plap plat ple- plea pleb plee plet plpa plpp pltt ppal ppap pple pppa pppp ppta pptt ptab ptal ptbl taa- taal taat taba tabb tabe tabl tael tala tale tall tapa tape tapp tapt tata tatb tate tatt tbta tbtp teal teat teba teel teet tel- tela tele tell telt tepa tepe tepp teta tete tett tlpa tpap tppa tppp tpte tptp ttab ttbb tttt