lipes ilpes lpies plies iples piles lieps ileps leips elips ielps eilps lpeis pleis lepis elpis pelis eplis ipels piels iepls eipls peils epils lipse ilpse lpise plise iplse pilse lispe ilspe lsipe slipe islpe silpe lpsie plsie lspie slpie pslie splie ipsle pisle isple siple psile spile liesp ilesp leisp elisp ielsp eilsp lisep ilsep lsiep sliep islep silep lesip elsip lseip sleip eslip selip ieslp eislp iselp sielp esilp seilp lpesi plesi lepsi elpsi pelsi eplsi lpsei plsei lspei slpei pslei splei lespi elspi lsepi slepi eslpi selpi pesli epsli pseli speli espli sepli ipesl piesl iepsl eipsl peisl episl ipsel pisel ispel sipel psiel spiel iespl eispl isepl siepl esipl seipl pesil epsil pseil speil espil sepil
Note: these 'words' (valid or invalid) are all the permutations of the word lipes. These words are obtained by scrambling the letters in lipes.