thews htews tehws ethws hetws ehtws thwes htwes twhes wthes hwtes whtes tewhs etwhs twehs wtehs ewths weths hewts ehwts hwets whets ewhts wehts thesw htesw tehsw ethsw hetsw ehtsw thsew htsew tshew sthew hstew shtew teshw etshw tsehw stehw esthw sethw hestw ehstw hsetw shetw eshtw sehtw thwse htwse twhse wthse hwtse whtse thswe htswe tshwe sthwe hstwe shtwe twshe wtshe tswhe stwhe wsthe swthe hwste whste hswte shwte wshte swhte tewsh etwsh twesh wtesh ewtsh wetsh teswh etswh tsewh stewh estwh setwh twseh wtseh tsweh stweh wsteh swteh ewsth westh eswth sewth wseth sweth hewst ehwst hwest whest ewhst wehst heswt ehswt hsewt shewt eshwt sehwt hwset whset hswet shwet wshet swhet ewsht wesht eswht sewht wseht sweht
Note: these 'words' (valid or invalid) are all the permutations of the word thews. These words are obtained by scrambling the letters in thews.