bhels hbels behls ebhls hebls ehbls bhles hbles blhes lbhes hlbes lhbes belhs eblhs blehs lbehs elbhs lebhs helbs ehlbs hlebs lhebs elhbs lehbs bhesl hbesl behsl ebhsl hebsl ehbsl bhsel hbsel bshel sbhel hsbel shbel beshl ebshl bsehl sbehl esbhl sebhl hesbl ehsbl hsebl shebl eshbl sehbl bhlse hblse blhse lbhse hlbse lhbse bhsle hbsle bshle sbhle hsble shble blshe lbshe bslhe sblhe lsbhe slbhe hlsbe lhsbe hslbe shlbe lshbe slhbe belsh eblsh blesh lbesh elbsh lebsh beslh ebslh bselh sbelh esblh seblh blseh lbseh bsleh sbleh lsbeh slbeh elsbh lesbh eslbh selbh lsebh slebh helsb ehlsb hlesb lhesb elhsb lehsb heslb ehslb hselb shelb eshlb sehlb hlseb lhseb hsleb shleb lsheb slheb elshb leshb eslhb selhb lsehb slehb
Note: these 'words' (valid or invalid) are all the permutations of the word bhels. These words are obtained by scrambling the letters in bhels.