cella eclla clela lcela elcla lecla cella eclla clela lcela elcla lecla cllea lclea cllea lclea llcea llcea ellca lelca ellca lelca lleca lleca celal eclal cleal lceal elcal lecal ceall ecall caell acell eacll aecll clael lcael calel aclel lacel alcel elacl leacl ealcl aelcl laecl alecl celal eclal cleal lceal elcal lecal ceall ecall caell acell eacll aecll clael lcael calel aclel lacel alcel elacl leacl ealcl aelcl laecl alecl cllae lclae cllae lclae llcae llcae clale lcale calle aclle lacle alcle clale lcale calle aclle lacle alcle llace llace lalce allce lalce allce ellac lelac ellac lelac lleac lleac elalc lealc eallc aellc laelc alelc elalc lealc eallc aellc laelc alelc llaec llaec lalec allec lalec allec
Note: these 'words' (valid or invalid) are all the permutations of the word cella. These words are obtained by scrambling the letters in cella.