truth rtuth turth utrth rutth urtth trtuh rttuh ttruh ttruh rttuh trtuh tutrh uttrh tturh tturh uttrh tutrh rutth urtth rtuth truth utrth turth truht rtuht turht utrht rutht urtht trhut rthut thrut htrut rhtut hrtut tuhrt uthrt thurt hturt uhtrt hutrt ruhtt urhtt rhutt hrutt uhrtt hurtt trthu rtthu ttrhu ttrhu rtthu trthu trhtu rthtu thrtu htrtu rhttu hrttu tthru tthru thtru httru thtru httru rthtu trhtu rhttu hrttu thrtu htrtu tuthr utthr ttuhr ttuhr utthr tuthr tuhtr uthtr thutr htutr uhttr huttr tthur tthur thtur httur thtur httur uthtr tuhtr uhttr huttr thutr htutr rutht urtht rtuht truht utrht turht ruhtt urhtt rhutt hrutt uhrtt hurtt rthut trhut rhtut hrtut thrut htrut uthrt tuhrt uhtrt hutrt thurt hturt
Note: these 'words' (valid or invalid) are all the permutations of the word truth. These words are obtained by scrambling the letters in truth.