bbbb bbfn bblb bffl bftt blbt blno blob blon bloo blot blou blub bluf blut bobb bobo bobu boff bofu boll boln bolo bolt bolu bonn bono bont bonu boob boof bool boon boot botb botn boto bott bouf boul boun bout btob bttb bubb bubo bubu buff bufo bulb bull bult bulu bunb bunn buno bunt bunu buol buon but- buto butt ffff fftf ffun flnb flob flon floo flot flou flub fluf fluo fntb fnuf fobt fofo foll folo folt fono font foof fool foon foot foto fott foul foun fout ft-l ftlb ftub fubb fubu fuff fufu full fulu funf funt futo futu llll lloo lob- lobb lobo loff lofn loft loll lolo lono lont loob loof lool loon loot lotl loto lott loul loun lout louu ltbf ltbl ltnt luff luft lufu lull lulu lunn luno lunt nbbo nbfl nbuf nfff nfon nfto nnnn nnot nntn nobo nobu nolf noll nolo nolt non- nonn nono nont nonu noo- noob nool noon nooo noot not- noto nott noul noun nout ntfl ntnu ntof ntto nubl nuff null nunn nuno nunt nuon nutt nutu obbo oblu obol obon obot off- offo offu ofno olbo ollo olof olon olot oltu onlf onno onon ont- onto onut ooff oolo oont oooo ootb oto- otof oton otoo otto ottu ouff oulu oun- out- outb outo ouu- tbnf tfot tlon tnfl tnut tobo tobt tobu toff tofo toft tofu tol- toll tolo tolt tolu tonb tonn tono tonu toof tool toon toot toto tott toul toun tout ttbb ttff ttfn tton tttt ttul tubb tubo tubu tuff tufo tuft tufu tull tulo tulu tunb tunn tuno tunu tutl tuto tutt tutu tuuo ubbo ublo ubon ubtf ulft ullo ulno ulo- ulto ultt ulul unlf unno unon untb unto unut uofl uofo utfo utto uttu uulu uuno uutf uuuu