eraqc reaqc earqc aerqc raeqc areqc erqac reqac eqrac qerac rqeac qreac eaqrc aeqrc eqarc qearc aqerc qaerc raqec arqec rqaec qraec aqrec qarec eracq reacq earcq aercq raecq arecq ercaq recaq ecraq ceraq rceaq creaq eacrq aecrq ecarq cearq acerq caerq raceq arceq rcaeq craeq acreq careq erqca reqca eqrca qerca rqeca qreca ercqa recqa ecrqa cerqa rceqa creqa eqcra qecra ecqra ceqra qcera cqera rqcea qrcea rcqea crqea qcrea cqrea eaqcr aeqcr eqacr qeacr aqecr qaecr eacqr aecqr ecaqr ceaqr aceqr caeqr eqcar qecar ecqar ceqar qcear cqear aqcer qacer acqer caqer qcaer cqaer raqce arqce rqace qrace aqrce qarce racqe arcqe rcaqe craqe acrqe carqe rqcae qrcae rcqae crqae qcrae cqrae aqcre qacre acqre caqre qcare cqare
Note: these 'words' (valid or invalid) are all the permutations of the word eraqc. These words are obtained by scrambling the letters in eraqc.