spets psets septs espts pests epsts sptes pstes stpes tspes ptses tpses setps estps steps tseps etsps tesps petss eptss ptess tpess etpss tepss spest psest sepst espst pesst epsst spset psset sspet sspet psset spset sespt esspt ssept ssept esspt sespt pesst epsst psest spest espst sepst sptse pstse stpse tspse ptsse tpsse spste psste sspte sspte psste spste stspe tsspe sstpe sstpe tsspe stspe ptsse tpsse pstse sptse tspse stpse setsp estsp stesp tsesp etssp tessp sestp esstp ssetp ssetp esstp sestp stsep tssep sstep sstep tssep stsep etssp tessp estsp setsp tsesp stesp petss eptss ptess tpess etpss tepss pests epsts psets spets espts septs ptses tpses pstes sptes tspes stpes etsps tesps estps setps tseps steps
Note: these 'words' (valid or invalid) are all the permutations of the word spets. These words are obtained by scrambling the letters in spets.