whert hwert wehrt ewhrt hewrt ehwrt whret hwret wrhet rwhet hrwet rhwet werht ewrht wreht rweht erwht rewht herwt ehrwt hrewt rhewt erhwt rehwt whetr hwetr wehtr ewhtr hewtr ehwtr whter hwter wther twher htwer thwer wethr ewthr wtehr twehr etwhr tewhr hetwr ehtwr htewr thewr ethwr tehwr whrte hwrte wrhte rwhte hrwte rhwte whtre hwtre wthre twhre htwre thwre wrthe rwthe wtrhe twrhe rtwhe trwhe hrtwe rhtwe htrwe thrwe rthwe trhwe werth ewrth wreth rweth erwth rewth wetrh ewtrh wterh twerh etwrh tewrh wrteh rwteh wtreh twreh rtweh trweh ertwh retwh etrwh terwh rtewh trewh hertw ehrtw hretw rhetw erhtw rehtw hetrw ehtrw hterw therw ethrw tehrw hrtew rhtew htrew threw rthew trhew erthw rethw etrhw terhw rtehw trehw
Note: these 'words' (valid or invalid) are all the permutations of the word whert. These words are obtained by scrambling the letters in whert.