ffff ffii ffrr fftf fiff fifi fifo fift fiii fior firy fiti fitt fofo foof foot for- fori foro forr fort foti foto fott foty four fout foyt frio frit frot frou ftfy ftii fuff fufu fuir fuit fuor fur- furi furo furr furt fury futi futo futu fuyt fuyu fyfi fyry fyti iffy ifit ifor ifrf ifri ifto ifyo iiii iiio iiit iioi iioo iitr iitt ioii ioio ioit ioof iooi iooo iori iotf ioto irfu iri- irio iriy irri irtf irti itif itof itoi itoo itor itou itrf itri itry ittf itto itty itur iuiu iuty off- offo offr offu offy ofit ofor oiii oirt oiry oiti ooff oofy oooo oort oory ooty orff orfi orfu ori- orif orio orit oro- orof oror orot oroy orri orro orry orto otif otit oto- otof otoo otor otoy otro otry otti otto ottu otur otyr ouff ouii ouir ouit our- ouro ourt out- outi outo outy ouu- ouyr oyou oyri riff rift rifu riif riot riou riri riti rito ritt ritu riyf riyo roff rofo roif roio roir roit roiu roof rooi roor root rori roro rort roru rory roti roto rotr rott roty rouf rout rouy royt rrif rrrr ruff rufo ruft ruif ruit ruoy ruri ruro ruru ruti ruto rutt rutu ruty ruyi ryff ryft ryif ryot rytt ryyf ryyt tfot tiff tifo tift tiit tiiu tiou tiri tiro tirr tiru tiry titi tito titt titu tiyi tiyo to-y toff tofi tofo toft tofu toit toof toor toot torf tori toro torr tort toru tory toti toto totr tott toty toui tour tout toyo toyt trfr tri- trif trio trit troi troo trot trou troy trtr trut truu try- tryo ttff ttoy tttt tuff tufi tufo tuft tufu tuit tuiu tuor turf turi turo turr turt turu tury tuti tuto tutt tutu tuty tuuo tyff tyft tyir tyr- tyrf tyro tyrr tyti tyto tytt tyty uirr uofo uor- urff urfi urft urif uriu uro- uroo urri urry urur urut utfo utor utoy utri utti utto uttu uuri uutf uuuu uyir yiff yift yirr yiti yoff yoit yoof yoot yori yoro yort yory yott youf youi your yout yoyo yrof yuff yuft yufu yuit yuri yurt yury yuto yutu yuty yuyu yyff yyyy