liner ilner lnier nlier inler niler lienr ilenr leinr elinr ielnr eilnr lneir nleir lenir elnir nelir enlir inelr nielr ienlr einlr neilr enilr linre ilnre lnire nlire inlre nilre lirne ilrne lrine rline irlne rilne lnrie nlrie lrnie rlnie nrlie rnlie inrle nirle irnle rinle nrile rnile liern ilern leirn elirn ielrn eilrn liren ilren lrien rlien irlen rilen lerin elrin lrein rlein erlin relin ierln eirln ireln rieln eriln reiln lneri nleri lenri elnri nelri enlri lnrei nlrei lrnei rlnei nrlei rnlei lerni elrni lreni rleni erlni relni nerli enrli nreli rneli ernli renli inerl nierl ienrl einrl neirl enirl inrel nirel irnel rinel nriel rniel iernl eirnl irenl rienl erinl reinl neril enril nreil rneil ernil renil
Note: these 'words' (valid or invalid) are all the permutations of the word liner. These words are obtained by scrambling the letters in liner.