heils ehils hiels ihels eihls iehls helis ehlis hleis lheis elhis lehis hiles ihles hlies lhies ilhes lihes eilhs ielhs elihs leihs ilehs liehs heisl ehisl hiesl ihesl eihsl iehsl hesil ehsil hseil sheil eshil sehil hisel ihsel hsiel shiel ishel sihel eishl ieshl esihl seihl isehl siehl helsi ehlsi hlesi lhesi elhsi lehsi hesli ehsli hseli sheli eshli sehli hlsei lhsei hslei shlei lshei slhei elshi leshi eslhi selhi lsehi slehi hilse ihlse hlise lhise ilhse lihse hisle ihsle hsile shile ishle sihle hlsie lhsie hslie shlie lshie slhie ilshe lishe islhe silhe lsihe slihe eilsh ielsh elish leish ilesh liesh eislh ieslh esilh seilh iselh sielh elsih lesih eslih selih lseih sleih ilseh liseh isleh sileh lsieh slieh
Note: these 'words' (valid or invalid) are all the permutations of the word heils. These words are obtained by scrambling the letters in heils.