-ol fff ffl ffo ffr ffu flf fll flo flr flu fof fol foo for fou frf frl fro frr fru fuf ful fuo fur fuu lff lfl lfo lfr lfu llf lll llo llr llu lof lol loo lor lou lrf lro lrr lru luf lul luo lur luu of- off ofl ofo ofr ofu olf oll olo olu oo- oof ool ooo oor or- orf orl oro orr oru ou- ouf oul ouo our rff rfl rfo rfr rfu rlf rll rlo rlr rlu rof rol roo ror rou rrf rrl rrr rru ruf ruo rur ruu uff ufl ufo ufr ufu ulf ull ulo ulr ulu uol uoo uor ur- urf url uro urr uru uur uuu

ffff ffrr floo flor flou fluf fluo flur fofo foll folo folr foof fool for- forl foro forr foul four frol frou fuff fufu full fulu fuor fur- furl furo furr llll lloo loff loll lolo loof lool loor loro loul lour louu lrrr luff lufu lull lulu off- offo offr offu ofor ollo olof olor olur ooff oolo oooo orff orfu orlo orlu oro- orof oror orro ouff oulu our- ouro ouu- rffl roff rofl rofo rolf roll rolo roof rool roor roro roru rouf roul rrrr ruff rufo rull rulo ruro ruru ullo ullr ulo- ulul uofl uofo uor- urff uro- urol uroo urur uulu uuuu

floor floro floru fluff fluo- fluor flurr follo forro forur fouro fu-fu fullf fullo furo- furor lofou lollo lolol louro lulul offof ofour ollur olour ooooo orfor orful orolu oruro oullo ouoro ourol ro-ro rofor rolfo rollo roull ruffo rufo- rufol rullo ufofu ullur ululu uluru urour uuuuu

fluor- fluoro foofoo foofur foufou fourof fourou frollo fullof furfur furour furrfu lloro loloru looloo loulou lourlo lufful lurulu oooooo orloff orrour roflol roloff rouful ruurlo ulloor

fluoro- foo-foo forloff fou-fou furrour looroll off-off rolloff

froufrou furfurol oolooloo roll-off roulroul

fllllllll four-four frou-frou