heids ehids hieds iheds eihds iehds hedis ehdis hdeis dheis edhis dehis hides ihdes hdies dhies idhes dihes eidhs iedhs edihs deihs idehs diehs heisd ehisd hiesd ihesd eihsd iehsd hesid ehsid hseid sheid eshid sehid hised ihsed hsied shied ished sihed eishd ieshd esihd seihd isehd siehd hedsi ehdsi hdesi dhesi edhsi dehsi hesdi ehsdi hsedi shedi eshdi sehdi hdsei dhsei hsdei shdei dshei sdhei edshi deshi esdhi sedhi dsehi sdehi hidse ihdse hdise dhise idhse dihse hisde ihsde hside shide ishde sihde hdsie dhsie hsdie shdie dshie sdhie idshe dishe isdhe sidhe dsihe sdihe eidsh iedsh edish deish idesh diesh eisdh iesdh esidh seidh isedh siedh edsih desih esdih sedih dseih sdeih idseh diseh isdeh sideh dsieh sdieh
Note: these 'words' (valid or invalid) are all the permutations of the word heids. These words are obtained by scrambling the letters in heids.