liers ilers leirs elirs ielrs eilrs lires ilres lries rlies irles riles leris elris lreis rleis erlis relis ierls eirls irels riels erils reils liesr ilesr leisr elisr ielsr eilsr liser ilser lsier slier isler siler lesir elsir lseir sleir eslir selir ieslr eislr iselr sielr esilr seilr lirse ilrse lrise rlise irlse rilse lisre ilsre lsire slire islre silre lrsie rlsie lsrie slrie rslie srlie irsle risle isrle sirle rsile srile lersi elrsi lresi rlesi erlsi relsi lesri elsri lseri sleri eslri selri lrsei rlsei lsrei slrei rslei srlei ersli resli esrli serli rseli sreli iersl eirsl iresl riesl erisl reisl iesrl eisrl iserl sierl esirl seirl irsel risel isrel sirel rsiel sriel ersil resil esril seril rseil sreil
Note: these 'words' (valid or invalid) are all the permutations of the word liers. These words are obtained by scrambling the letters in liers.