scall csall sacll ascll casll acsll sclal cslal slcal lscal clsal lcsal salcl aslcl slacl lsacl alscl lascl calsl aclsl clasl lcasl alcsl lacsl scall csall sacll ascll casll acsll sclal cslal slcal lscal clsal lcsal salcl aslcl slacl lsacl alscl lascl calsl aclsl clasl lcasl alcsl lacsl sclla cslla slcla lscla clsla lcsla sclla cslla slcla lscla clsla lcsla sllca lslca sllca lslca llsca llsca cllsa lclsa cllsa lclsa llcsa llcsa sallc asllc slalc lsalc alslc laslc sallc asllc slalc lsalc alslc laslc sllac lslac sllac lslac llsac llsac allsc lalsc allsc lalsc llasc llasc calls aclls clals lcals alcls lacls calls aclls clals lcals alcls lacls cllas lclas cllas lclas llcas llcas allcs lalcs allcs lalcs llacs llacs
Note: these 'words' (valid or invalid) are all the permutations of the word scall. These words are obtained by scrambling the letters in scall.