fff ffo ffr ffu ffw ffy fof foo for fou fow foy frf fro frr fru frw fry fuf fuo fur fuu fwf fwo fy- fyo of- off ofo ofr ofu ofw oo- oof ooo oor oow or- orf oro orr oru ory ou- ouf ouo our owf owo owu oww oyo rff rfo rfr rfu rfw rof roo ror rou row roy rrf rrr rru ruf ruo rur ruu ruy rwf rwr rwu rwy ry- ryf ryo ryr ryu ryy uff ufo ufr ufu ufw uoo uor uow ur- urf uro urr uru urw ury uur uuu uwf uwr uww uyo uyu wff wfo wfr wfu wfw wof woo wor wou wow woy wr- wrf wro wrr wru wrw wry wuo wur wwf wwo wwu www wy- wyf wyo wyr yff yfr yfu yof yoo yor you yow yoy yrf yro yru yuo yur yuu yuy yyf yyu yyy