hayey ahyey hyaey yhaey ayhey yahey haeyy aheyy heayy ehayy aehyy eahyy hyeay yheay heyay ehyay yehay eyhay ayehy yaehy aeyhy eayhy yeahy eyahy hayye ahyye hyaye yhaye ayhye yahye hayye ahyye hyaye yhaye ayhye yahye hyyae yhyae hyyae yhyae yyhae yyhae ayyhe yayhe ayyhe yayhe yyahe yyahe haeyy aheyy heayy ehayy aehyy eahyy hayey ahyey hyaey yhaey ayhey yahey heyay ehyay hyeay yheay eyhay yehay aeyhy eayhy ayehy yaehy eyahy yeahy hyeya yheya heyya ehyya yehya eyhya hyyea yhyea hyyea yhyea yyhea yyhea heyya ehyya hyeya yheya eyhya yehya yeyha eyyha yyeha yyeha eyyha yeyha ayeyh yaeyh aeyyh eayyh yeayh eyayh ayyeh yayeh ayyeh yayeh yyaeh yyaeh aeyyh eayyh ayeyh yaeyh eyayh yeayh yeyah eyyah yyeah yyeah eyyah yeyah
Note: these 'words' (valid or invalid) are all the permutations of the word hayey. These words are obtained by scrambling the letters in hayey.