oohe oohe ohoe hooe ohoe hooe ooeh ooeh oeoh eooh oeoh eooh oheo hoeo oeho eoho heoo ehoo oheo hoeo oeho eoho heoo ehoo
Note: these 'words' (valid or invalid) are all the permutations of the word oohe. These words are obtained by scrambling the letters in oohe.