fruit rfuit furit ufrit rufit urfit friut rfiut firut ifrut rifut irfut fuirt ufirt fiurt ifurt uifrt iufrt ruift urift riuft iruft uirft iurft fruti rfuti furti ufrti rufti urfti frtui rftui ftrui tfrui rtfui trfui futri uftri fturi tfuri utfri tufri rutfi urtfi rtufi trufi utrfi turfi fritu rfitu firtu ifrtu riftu irftu frtiu rftiu ftriu tfriu rtfiu trfiu fitru iftru ftiru tfiru itfru tifru ritfu irtfu rtifu trifu itrfu tirfu fuitr ufitr fiutr ifutr uiftr iuftr futir uftir ftuir tfuir utfir tufir fitur iftur ftiur tfiur itfur tifur uitfr iutfr utifr tuifr itufr tiufr ruitf uritf riutf irutf uirtf iurtf rutif urtif rtuif truif utrif turif rituf irtuf rtiuf triuf itruf tiruf uitrf iutrf utirf tuirf iturf tiurf
Note: these 'words' (valid or invalid) are all the permutations of the word fruit. These words are obtained by scrambling the letters in fruit.