fehm efhm fhem hfem ehfm hefm femh efmh fmeh mfeh emfh mefh fhme hfme fmhe mfhe hmfe mhfe ehmf hemf emhf mehf hmef mhef
Note: these 'words' (valid or invalid) are all the permutations of the word fehm. These words are obtained by scrambling the letters in fehm.