hents ehnts hnets nhets enhts nehts hetns ehtns htens thens ethns tehns hntes nhtes htnes thnes nthes tnhes enths neths etnhs tenhs ntehs tnehs henst ehnst hnest nhest enhst nehst hesnt ehsnt hsent shent eshnt sehnt hnset nhset hsnet shnet nshet snhet ensht nesht esnht senht nseht sneht hetsn ehtsn htesn thesn ethsn tehsn hestn ehstn hsetn shetn eshtn sehtn htsen thsen hsten shten tshen sthen etshn teshn esthn sethn tsehn stehn hntse nhtse htnse thnse nthse tnhse hnste nhste hsnte shnte nshte snhte htsne thsne hstne shtne tshne sthne ntshe tnshe nsthe snthe tsnhe stnhe entsh netsh etnsh tensh ntesh tnesh ensth nesth esnth senth nseth sneth etsnh tesnh estnh setnh tsenh stenh ntseh tnseh nsteh snteh tsneh stneh
Note: these 'words' (valid or invalid) are all the permutations of the word hents. These words are obtained by scrambling the letters in hents.