bbbb bbeb bbet bblb bebb bebe bebo beeb beel beep beet bele bell belo belp belt beo- beot bepo bete beto bett blbt bleb blee bleo blet blob bloo blop blot bobb bobe bobo boee boel boeo boep boet bole boll bolo bolt boob booe bool boop boot bope bopp botb bote boto bott bpel bpoe bpot btbp btlp btob bttb ebbo ebel eboe ebol eboo ebpo eeee eele eete el-b el-p elbe elbo elee eleo elet elle ello elpe elte elto eole eolo eoto epee eple epll epol epot eppo eppp epte etee etel etoe ette etto lebo leel leep leet lele lell lelo lepe lepo lepp lept lete leto lett llet llll lloo lob- lobb lobe lobo loeb lole loll lolo loob looe lool loop loot lope lopp lote lotl loto lott lppl lptb ltbl ltee o-eo obbo obel obet oble oboe obol obot oele olbo ole- oleo olet olle ollo olot olpe oobe oolo oooo ootb ootp opel opep opet ople opo- oppo opto otee otep oto- otoe otoo otpp otte otto pebl peel peep peet pel- pelb pele pell pelo pelt pepe pepo pete peto pett ple- pleb plee pleo plet plob ploo plop plot plpp pltt pobo poel poet pole poll polo polt pool poop poot pop- pope popo popp popt pote poto pott pple pplo pppo pppp pptt ptbl ptol ptop tbtp tebo teel teet tel- tele tell telo telt tepe tepp tete teto tett tobe tobo tobt toee toet tol- tole toll tolo tolt tool toot top- tope topo topp topt tote toto tott tpol tppp tpte tptp ttbb tteo ttoe ttop tttt