merch emrch mrech rmech ermch remch mecrh emcrh mcerh cmerh ecmrh cemrh mrceh rmceh mcreh cmreh rcmeh crmeh ercmh recmh ecrmh cermh rcemh cremh merhc emrhc mrehc rmehc ermhc remhc mehrc emhrc mherc hmerc ehmrc hemrc mrhec rmhec mhrec hmrec rhmec hrmec erhmc rehmc ehrmc hermc rhemc hremc mechr emchr mcehr cmehr ecmhr cemhr mehcr emhcr mhecr hmecr ehmcr hemcr mcher cmher mhcer hmcer chmer hcmer echmr cehmr ehcmr hecmr chemr hcemr mrche rmche mcrhe cmrhe rcmhe crmhe mrhce rmhce mhrce hmrce rhmce hrmce mchre cmhre mhcre hmcre chmre hcmre rchme crhme rhcme hrcme chrme hcrme erchm rechm ecrhm cerhm rcehm crehm erhcm rehcm ehrcm hercm rhecm hrecm echrm cehrm ehcrm hecrm cherm hcerm rchem crhem rhcem hrcem chrem hcrem
Note: these 'words' (valid or invalid) are all the permutations of the word merch. These words are obtained by scrambling the letters in merch.