litho iltho ltiho tliho itlho tilho lihto ilhto lhito hlito ihlto hilto lthio tlhio lhtio hltio thlio htlio ithlo tihlo ihtlo hitlo thilo htilo litoh iltoh ltioh tlioh itloh tiloh lioth iloth loith olith iolth oilth ltoih tloih lotih oltih tolih otlih itolh tiolh iotlh oitlh toilh otilh lihot ilhot lhiot hliot ihlot hilot lioht iloht loiht oliht iolht oilht lhoit hloit lohit olhit holit ohlit iholt hiolt iohlt oihlt hoilt ohilt lthoi tlhoi lhtoi hltoi thloi htloi ltohi tlohi lothi olthi tolhi otlhi lhoti hloti lohti olhti holti ohlti tholi htoli tohli othli hotli ohtli ithol tihol ihtol hitol thiol htiol itohl tiohl iothl oithl toihl otihl ihotl hiotl iohtl oihtl hoitl ohitl thoil htoil tohil othil hotil ohtil
Note: these 'words' (valid or invalid) are all the permutations of the word litho. These words are obtained by scrambling the letters in litho.