ffff fftf ffun flon floo flot flou fluf fluo fnuf fofo foll folo folt fono font foof fool foon foot foto fott foul foun fout ft-l fuff fufu full fulu funf funt futo futu llll lloo loff lofn loft loll lolo lono lont loof lool loon loot lotl loto lott loul loun lout louu ltnt luff luft lufu lull lulu lunn luno lunt nfff nfon nfto nnnn nnot nntn nolf noll nolo nolt non- nonn nono nont nonu noo- nool noon nooo noot not- noto nott noul noun nout ntfl ntnu ntof ntto nuff null nunn nuno nunt nuon nutt nutu off- offo offu ofno ollo olof olon olot oltu onlf onno onon ont- onto onut ooff oolo oont oooo oto- otof oton otoo otto ottu ouff oulu oun- out- outo ouu- tfot tlon tnfl tnut toff tofo toft tofu tol- toll tolo tolt tolu tonn tono tonu toof tool toon toot toto tott toul toun tout ttff ttfn tton tttt ttul tuff tufo tuft tufu tull tulo tulu tunn tuno tunu tutl tuto tutt tutu tuuo ulft ullo ulno ulo- ulto ultt ulul unlf unno unon unto unut uofl uofo utfo utto uttu uulu uuno uutf uuuu