qchi cqhi qhci hqci chqi hcqi qcih cqih qich iqch ciqh icqh qhic hqic qihc iqhc hiqc ihqc chiq hciq cihq ichq hicq ihcq
Note: these 'words' (valid or invalid) are all the permutations of the word qchi. These words are obtained by scrambling the letters in qchi.