lairs alirs liars ilars ailrs ialrs laris alris lrais rlais arlis ralis liras ilras lrias rlias irlas rilas airls iarls arils rails irals rials laisr alisr liasr ilasr ailsr ialsr lasir alsir lsair slair aslir salir lisar ilsar lsiar sliar islar silar aislr iaslr asilr sailr isalr sialr larsi alrsi lrasi rlasi arlsi ralsi lasri alsri lsari slari aslri salri lrsai rlsai lsrai slrai rslai srlai arsli rasli asrli sarli rsali srali lirsa ilrsa lrisa rlisa irlsa rilsa lisra ilsra lsira slira islra silra lrsia rlsia lsria slria rslia srlia irsla risla isrla sirla rsila srila airsl iarsl arisl raisl irasl riasl aisrl iasrl asirl sairl isarl siarl arsil rasil asril saril rsail srail irsal risal isral siral rsial srial
Note: these 'words' (valid or invalid) are all the permutations of the word lairs. These words are obtained by scrambling the letters in lairs.