pesto epsto pseto speto espto septo petso eptso pteso tpeso etpso tepso psteo spteo ptseo tpseo stpeo tspeo estpo setpo etspo tespo stepo tsepo pesot epsot pseot speot espot sepot peost epost poest opest eopst oepst psoet spoet poset opset sopet ospet esopt seopt eospt oespt soept osept petos eptos pteos tpeos etpos tepos peots epots poets opets eopts oepts ptoes tpoes potes optes topes otpes etops teops eotps oetps toeps oteps pstoe sptoe ptsoe tpsoe stpoe tspoe psote spote poste opste sopte ospte ptose tpose potse optse topse otpse stope tsope sotpe ostpe tospe otspe estop setop etsop tesop steop tseop esotp seotp eostp oestp soetp osetp etosp teosp eotsp oetsp toesp otesp stoep tsoep sotep ostep tosep otsep
Note: these 'words' (valid or invalid) are all the permutations of the word pesto. These words are obtained by scrambling the letters in pesto.