blahs lbahs balhs ablhs labhs albhs blhas lbhas bhlas hblas lhbas hlbas bahls abhls bhals hbals ahbls habls lahbs alhbs lhabs hlabs ahlbs halbs blash lbash balsh ablsh labsh albsh blsah lbsah bslah sblah lsbah slbah baslh abslh bsalh sbalh asblh sablh lasbh alsbh lsabh slabh aslbh salbh blhsa lbhsa bhlsa hblsa lhbsa hlbsa blsha lbsha bslha sblha lsbha slbha bhsla hbsla bshla sbhla hsbla shbla lhsba hlsba lshba slhba hslba shlba bahsl abhsl bhasl hbasl ahbsl habsl bashl abshl bsahl sbahl asbhl sabhl bhsal hbsal bshal sbhal hsbal shbal ahsbl hasbl ashbl sahbl hsabl shabl lahsb alhsb lhasb hlasb ahlsb halsb lashb alshb lsahb slahb aslhb salhb lhsab hlsab lshab slhab hslab shlab ahslb haslb ashlb sahlb hsalb shalb
Note: these 'words' (valid or invalid) are all the permutations of the word blahs. These words are obtained by scrambling the letters in blahs.