a-be aaaa aaab aaae aaal aaap aaba aabb aabl aabp aaea aaep aala aale aall aalo aaoe aaoo aapa aapl aapo abaa abab abae abal abap abb- abba abbb abbe abbo abee abel abla able ablo aboa abob abol aboo abpa abpp aeap aela aelp al-p alaa alae alal alao alap alb- alba albe albo alea alee aleo alep all- alla alle alll allo aloa aloe alol aloo alop alpa alpe alpl alpo aoba aola aole aopo apal apao apap apba apea apel apep apl- apla aple aplp apo- apoe apoo apop appa appl baaa baal baba babb babe babo bael bala bale ball balo baol bapa bape bapp bbbb bbeb bblb beal beap beba bebb bebe bebo beeb beel beep bela bele bell belo belp beo- bepo blaa blab blae blea bleb blee bleo blob bloo blop boab boal boba bobb bobe bobo boea boee boel boeo boep bola bole boll bolo boob booe bool boop bopa bope bopp bpea bpel bpoe e-la eaba eala eale eaop eapp ebal ebba ebbo ebel ebla eboe ebol eboo ebpo eeea eeee eele el-b el-p elab elal elba elbe elbo elea elee eleo ella elle ello elpe eola eole eolo epaa epee eple epll epol eppa eppo eppp laaa laal laap laba labe labo lael lala lale lall lalo lapa lapb lape lapp leaa leal leao leap leba lebo leea leel leep lela lele lell lelo lepa lepe lepo lepp llao llll lloa lloo loap lob- loba lobb lobe lobo loeb lola lole loll lolo loob looe lool loop lopa lope lopp lpla lppl o-eo oall obal obba obbo obea obel obla oble oboe obol oela oele oepa olba olbo ole- olea oleo olla olle ollo olpe ooaa ooba oobe oola oolo oooo opal opap opel opep opla ople opo- oppa oppo paal paap paba paea paep pala pale pall palo palp papa papb pape papp pbpa peab peal peap peba pebl peel peep pel- pela pelb pele pell pelo pepa pepe pepo plaa plab plap ple- plea pleb plee pleo plob ploo plop plpa plpp poba pobo poea poel pola pole poll polo pool poop pop- popa pope popo popp ppal ppap pple pplo ppoa pppa pppo pppp