ffff ffun flon floo flou floy fluf fluo fluy fnuf fofo foll folo foly fono fony foof fool foon foul foun foyl foyn fuff fufu full fulu funf fuyl fuyu fynn llll lloo llyn loff lofn loll lolo loly lono loof lool loon loul loun louu loyn luff lufu lull lulu lunn luno luny lyff lyfy lyly lynn lyo- lyon lyun lyyf lyyn nfff nfon nnnn nolf noll nolo non- nonn nono nonu noo- nool noon nooo noul noun noyl noyo nuff null nunn nuno nuny nuon nyll nyny nyon nyul off- offo offu offy ofno ollo olly olof olon olyf onlf only onno onon onoy ooff oofy oolo oooo ouff oulu oun- ouu- oyly oyon oyou oyun ullo ully ulno ulo- ulul unlf unno unon uofl uofo uulu uuno uuuu uuyn ynol ynon ynou yoff yoll yolo yoly yono yoof yool yoon youf youl yoyn yoyo yuff yufu yulo yulu yuny yuon yuyu yyff yyyy