qade aqde qdae dqae adqe daqe qaed aqed qead eqad aeqd eaqd qdea dqea qeda eqda deqa edqa adeq daeq aedq eadq deaq edaq
Note: these 'words' (valid or invalid) are all the permutations of the word qade. These words are obtained by scrambling the letters in qade.