donna odnna dnona ndona ondna nodna donna odnna dnona ndona ondna nodna dnnoa ndnoa dnnoa ndnoa nndoa nndoa onnda nonda onnda nonda nnoda nnoda donan odnan dnoan ndoan ondan nodan doann odann daonn adonn oadnn aodnn dnaon ndaon danon adnon nadon andon onadn noadn oandn aondn naodn anodn donan odnan dnoan ndoan ondan nodan doann odann daonn adonn oadnn aodnn dnaon ndaon danon adnon nadon andon onadn noadn oandn aondn naodn anodn dnnao ndnao dnnao ndnao nndao nndao dnano ndano danno adnno nadno andno dnano ndano danno adnno nadno andno nnado nnado nando anndo nando anndo onnad nonad onnad nonad nnoad nnoad onand noand oannd aonnd naond anond onand noand oannd aonnd naond anond nnaod nnaod nanod annod nanod annod
Note: these 'words' (valid or invalid) are all the permutations of the word donna. These words are obtained by scrambling the letters in donna.