skeps kseps sekps eskps kesps eksps skpes kspes spkes pskes kpses pkses sepks espks speks pseks epsks pesks kepss ekpss kpess pkess epkss pekss skesp ksesp seksp esksp kessp ekssp sksep kssep sskep sskep kssep sksep seskp esskp ssekp ssekp esskp seskp kessp ekssp ksesp skesp esksp seksp skpse kspse spkse pskse kpsse pksse skspe ksspe sskpe sskpe ksspe skspe spske psske sspke sspke psske spske kpsse pksse kspse skpse pskse spkse sepsk espsk spesk psesk epssk pessk sespk esspk ssepk ssepk esspk sespk spsek pssek sspek sspek pssek spsek epssk pessk espsk sepsk psesk spesk kepss ekpss kpess pkess epkss pekss kesps eksps kseps skeps eskps sekps kpses pkses kspes skpes pskes spkes epsks pesks espks sepks pseks speks
Note: these 'words' (valid or invalid) are all the permutations of the word skeps. These words are obtained by scrambling the letters in skeps.