pails apils pials ipals aipls iapls palis aplis plais lpais alpis lapis pilas iplas plias lpias ilpas lipas ailps ialps alips laips ilaps liaps paisl apisl piasl ipasl aipsl iapsl pasil apsil psail spail aspil sapil pisal ipsal psial spial ispal sipal aispl iaspl asipl saipl isapl siapl palsi aplsi plasi lpasi alpsi lapsi pasli apsli psali spali aspli sapli plsai lpsai pslai splai lspai slpai alspi laspi aslpi salpi lsapi slapi pilsa iplsa plisa lpisa ilpsa lipsa pisla ipsla psila spila ispla sipla plsia lpsia pslia splia lspia slpia ilspa lispa islpa silpa lsipa slipa ailsp ialsp alisp laisp ilasp liasp aislp iaslp asilp sailp isalp sialp alsip lasip aslip salip lsaip slaip ilsap lisap islap silap lsiap sliap
Note: these 'words' (valid or invalid) are all the permutations of the word pails. These words are obtained by scrambling the letters in pails.