qpert pqert qeprt eqprt peqrt epqrt qpret pqret qrpet rqpet prqet rpqet qerpt eqrpt qrept rqept erqpt reqpt perqt eprqt preqt rpeqt erpqt repqt qpetr pqetr qeptr eqptr peqtr epqtr qpter pqter qtper tqper ptqer tpqer qetpr eqtpr qtepr tqepr etqpr teqpr petqr eptqr pteqr tpeqr etpqr tepqr qprte pqrte qrpte rqpte prqte rpqte qptre pqtre qtpre tqpre ptqre tpqre qrtpe rqtpe qtrpe tqrpe rtqpe trqpe prtqe rptqe ptrqe tprqe rtpqe trpqe qertp eqrtp qretp rqetp erqtp reqtp qetrp eqtrp qterp tqerp etqrp teqrp qrtep rqtep qtrep tqrep rtqep trqep ertqp retqp etrqp terqp rteqp treqp pertq eprtq pretq rpetq erptq reptq petrq eptrq pterq tperq etprq teprq prteq rpteq ptreq tpreq rtpeq trpeq ertpq retpq etrpq terpq rtepq trepq
Note: these 'words' (valid or invalid) are all the permutations of the word qpert. These words are obtained by scrambling the letters in qpert.