panni apnni pnani npani anpni napni panni apnni pnani npani anpni napni pnnai npnai pnnai npnai nnpai nnpai annpi nanpi annpi nanpi nnapi nnapi panin apnin pnain npain anpin napin painn apinn piann ipann aipnn iapnn pnian npian pinan ipnan nipan inpan anipn naipn ainpn ianpn niapn inapn panin apnin pnain npain anpin napin painn apinn piann ipann aipnn iapnn pnian npian pinan ipnan nipan inpan anipn naipn ainpn ianpn niapn inapn pnnia npnia pnnia npnia nnpia nnpia pnina npina pinna ipnna nipna inpna pnina npina pinna ipnna nipna inpna nnipa nnipa ninpa innpa ninpa innpa annip nanip annip nanip nnaip nnaip aninp nainp ainnp iannp nianp inanp aninp nainp ainnp iannp nianp inanp nniap nniap ninap innap ninap innap
Note: these 'words' (valid or invalid) are all the permutations of the word panni. These words are obtained by scrambling the letters in panni.