heals ehals haels ahels eahls aehls helas ehlas hleas lheas elhas lehas hales ahles hlaes lhaes alhes lahes ealhs aelhs elahs leahs alehs laehs heasl ehasl haesl ahesl eahsl aehsl hesal ehsal hseal sheal eshal sehal hasel ahsel hsael shael ashel sahel eashl aeshl esahl seahl asehl saehl helsa ehlsa hlesa lhesa elhsa lehsa hesla ehsla hsela shela eshla sehla hlsea lhsea hslea shlea lshea slhea elsha lesha eslha selha lseha sleha halse ahlse hlase lhase alhse lahse hasle ahsle hsale shale ashle sahle hlsae lhsae hslae shlae lshae slhae alshe lashe aslhe salhe lsahe slahe ealsh aelsh elash leash alesh laesh easlh aeslh esalh sealh aselh saelh elsah lesah eslah selah lseah sleah alseh laseh asleh saleh lsaeh slaeh
Note: these 'words' (valid or invalid) are all the permutations of the word heals. These words are obtained by scrambling the letters in heals.