fcnh cfnh fnch nfch cnfh ncfh fchn cfhn fhcn hfcn chfn hcfn fnhc nfhc fhnc hfnc nhfc hnfc cnhf nchf chnf hcnf nhcf hncf
Note: these 'words' (valid or invalid) are all the permutations of the word fcnh. These words are obtained by scrambling the letters in fcnh.