vmlp mvlp vlmp lvmp mlvp lmvp vmpl mvpl vpml pvml mpvl pmvl vlpm lvpm vplm pvlm lpvm plvm mlpv lmpv mplv pmlv lpmv plmv
Note: these 'words' (valid or invalid) are all the permutations of the word vmlp. These words are obtained by scrambling the letters in vmlp.