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forro forur fouro froop fu-fu furo- furor offof ofour ofpop ooooo orfor oruro ouoro pforp po-po poopo popop poppo popup poro- porro porur pouff proff proof proor prop- propp propr puppo puro- ro-ro rofor rprop ruffo rufo- u-pop ufofu upfor upoff urour uuuuu

foofoo foofur foufou fourof fourou fruupp furfur furour furrfu ofpoor oooooo orrour poofup poopoo pop-up popfor popoff popopo poporo poppop poupou pppppp profor profur propup propur puffup purpur uppoor upprop uruppu

foo-foo fou-fou furrour off-off ofproof poo-poo pop-off purpour

froufrou poorpoor poroporo pourpour

four-four frou-frou puff-puff

proof-proof

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