divna idvna dvina vdina ivdna vidna dinva idnva dniva ndiva indva nidva dvnia vdnia dnvia ndvia vndia nvdia ivnda vinda invda nivda vnida nvida divan idvan dvian vdian ivdan vidan diavn idavn daivn adivn iadvn aidvn dvain vdain davin advin vadin avdin ivadn viadn iavdn aivdn vaidn avidn dinav idnav dniav ndiav indav nidav dianv idanv dainv adinv iadnv aidnv dnaiv ndaiv daniv adniv nadiv andiv inadv niadv iandv aindv naidv anidv dvnai vdnai dnvai ndvai vndai nvdai dvani vdani davni advni vadni avdni dnavi ndavi danvi adnvi nadvi andvi vnadi nvadi vandi avndi navdi anvdi ivnad vinad invad nivad vniad nviad ivand viand iavnd aivnd vaind avind inavd niavd ianvd ainvd naivd anivd vnaid nvaid vanid avnid navid anvid
Note: these 'words' (valid or invalid) are all the permutations of the word divna. These words are obtained by scrambling the letters in divna.