driec rdiec direc idrec ridec irdec dreic rdeic deric edric redic erdic dierc iderc deirc edirc iedrc eidrc riedc iredc reidc eridc ierdc eirdc drice rdice dirce idrce ridce irdce drcie rdcie dcrie cdrie rcdie crdie dicre idcre dcire cdire icdre cidre ricde ircde rcide cride icrde cirde dreci rdeci derci edrci redci erdci drcei rdcei dcrei cdrei rcdei crdei decri edcri dceri cderi ecdri cedri recdi ercdi rcedi credi ecrdi cerdi diecr idecr deicr edicr iedcr eidcr dicer idcer dcier cdier icder cider decir edcir dceir cdeir ecdir cedir iecdr eicdr icedr ciedr ecidr ceidr riecd irecd reicd ericd iercd eircd riced irced rcied cried icred cired recid ercid rceid creid ecrid cerid iecrd eicrd icerd cierd ecird ceird
Note: these 'words' (valid or invalid) are all the permutations of the word driec. These words are obtained by scrambling the letters in driec.