painl apinl pianl ipanl aipnl iapnl panil apnil pnail npail anpil napil pinal ipnal pnial npial inpal nipal ainpl ianpl anipl naipl inapl niapl pailn apiln pialn ipaln aipln iapln palin aplin plain lpain alpin lapin pilan iplan plian lpian ilpan lipan ailpn ialpn alipn laipn ilapn liapn panli apnli pnali npali anpli napli palni aplni plani lpani alpni lapni pnlai nplai plnai lpnai nlpai lnpai anlpi nalpi alnpi lanpi nlapi lnapi pinla ipnla pnila npila inpla nipla pilna iplna plina lpina ilpna lipna pnlia nplia plnia lpnia nlpia lnpia inlpa nilpa ilnpa linpa nlipa lnipa ainlp ianlp anilp nailp inalp nialp ailnp ialnp alinp lainp ilanp lianp anlip nalip alnip lanip nlaip lnaip inlap nilap ilnap linap nliap lniap
Note: these 'words' (valid or invalid) are all the permutations of the word painl. These words are obtained by scrambling the letters in painl.