wripe rwipe wirpe iwrpe riwpe irwpe wrpie rwpie wprie pwrie rpwie prwie wipre iwpre wpire pwire ipwre piwre ripwe irpwe rpiwe priwe iprwe pirwe wriep rwiep wirep iwrep riwep irwep wreip rweip werip ewrip rewip erwip wierp iwerp weirp ewirp iewrp eiwrp riewp irewp reiwp eriwp ierwp eirwp wrpei rwpei wprei pwrei rpwei prwei wrepi rwepi werpi ewrpi rewpi erwpi wperi pweri wepri ewpri pewri epwri rpewi prewi repwi erpwi perwi eprwi wiper iwper wpier pwier ipwer piwer wiepr iwepr weipr ewipr iewpr eiwpr wpeir pweir wepir ewpir pewir epwir ipewr piewr iepwr eipwr peiwr epiwr ripew irpew rpiew priew iprew pirew riepw irepw reipw eripw ierpw eirpw rpeiw preiw repiw erpiw periw epriw iperw pierw ieprw eiprw peirw epirw
Note: these 'words' (valid or invalid) are all the permutations of the word wripe. These words are obtained by scrambling the letters in wripe.