floor florn floro floru flour fluff fluo- fluon fluor flurn flurr follo folon forno forro forur fouro frorn fu-fu fullf fullo fuorn furo- furor l-ron lofou lollo lolol loron lorun louro lulul lurun nnooo no-no nofor nofou nofun non-u nonno noonu noron norro norun nroff nu-nu nullo nunon nunun nuoro nurlu nurun offof offon offun ofono oforn ofour ollon ollur olour onoff onoon onorn onour ooooo orfor orful orlon ornon orolu orono oruro oullo oulon oulun ouoro ourno ourol ro-ro rofor rolfo rollo rolon ronno roull ruffo rufo- rufol rullo rulon runo- runof runon ufofu ullur ulno- ululu uluru unfun unfur unnun unnur unoor unorn unrol unrun unurn urour uuuuu