irvra rivra ivrra virra rvira vrira irrva rirva irrva rirva rriva rriva ivrra virra irvra rivra vrira rvira rvria vrria rrvia rrvia vrria rvria irvar rivar ivrar virar rviar vriar iravr riavr iarvr airvr raivr arivr ivarr viarr iavrr aivrr vairr avirr rvair vrair ravir arvir varir avrir irrav rirav irrav rirav rriav rriav irarv riarv iarrv airrv rairv arirv irarv riarv iarrv airrv rairv arirv rraiv rraiv rariv arriv rariv arriv ivrar virar irvar rivar vriar rviar ivarr viarr iavrr aivrr vairr avirr iravr riavr iarvr airvr raivr arivr vrair rvair varir avrir ravir arvir rvrai vrrai rrvai rrvai vrrai rvrai rvari vrari ravri arvri varri avrri rravi rravi rarvi arrvi rarvi arrvi vrari rvari varri avrri ravri arvri
Note: these 'words' (valid or invalid) are all the permutations of the word irvra. These words are obtained by scrambling the letters in irvra.