whews hwews wehws ewhws hewws ehwws whwes hwwes wwhes wwhes hwwes whwes wewhs ewwhs wwehs wwehs ewwhs wewhs hewws ehwws hwews whews ewhws wehws whesw hwesw wehsw ewhsw hewsw ehwsw whsew hwsew wshew swhew hswew shwew weshw ewshw wsehw swehw eswhw sewhw hesww ehsww hseww sheww eshww sehww whwse hwwse wwhse wwhse hwwse whwse whswe hwswe wshwe swhwe hswwe shwwe wwshe wwshe wswhe swwhe wswhe swwhe hwswe whswe hswwe shwwe wshwe swhwe wewsh ewwsh wwesh wwesh ewwsh wewsh weswh ewswh wsewh swewh eswwh sewwh wwseh wwseh wsweh swweh wsweh swweh ewswh weswh eswwh sewwh wsewh swewh hewsw ehwsw hwesw whesw ewhsw wehsw hesww ehsww hseww sheww eshww sehww hwsew whsew hswew shwew wshew swhew ewshw weshw eswhw sewhw wsehw swehw
Note: these 'words' (valid or invalid) are all the permutations of the word whews. These words are obtained by scrambling the letters in whews.