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