tilth itlth tlith ltith iltth litth titlh ittlh ttilh ttilh ittlh titlh tltih lttih ttlih ttlih lttih tltih iltth litth itlth tilth ltith tlith tilht itlht tliht ltiht iltht litht tihlt ithlt thilt htilt ihtlt hitlt tlhit lthit thlit htlit lhtit hltit ilhtt lihtt ihltt hiltt lhitt hlitt tithl itthl ttihl ttihl itthl tithl tihtl ithtl thitl htitl ihttl hittl tthil tthil thtil httil thtil httil ithtl tihtl ihttl hittl thitl htitl tlthi ltthi ttlhi ttlhi ltthi tlthi tlhti lthti thlti htlti lhtti hltti tthli tthli thtli httli thtli httli lthti tlhti lhtti hltti thlti htlti iltht litht itlht tilht ltiht tliht ilhtt lihtt ihltt hiltt lhitt hlitt ithlt tihlt ihtlt hitlt thilt htilt lthit tlhit lhtit hltit thlit htlit
Note: these 'words' (valid or invalid) are all the permutations of the word tilth. These words are obtained by scrambling the letters in tilth.