ereq reeq eerq eerq reeq ereq erqe reqe eqre qere rqee qree eeqr eeqr eqer qeer eqer qeer reqe erqe rqee qree eqre qere
Note: these 'words' (valid or invalid) are all the permutations of the word ereq. These words are obtained by scrambling the letters in ereq.