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