pooks opoks pooks opoks oopks oopks pokos opkos pkoos kpoos okpos kopos pokos opkos pkoos kpoos okpos kopos ookps ookps okops koops okops koops poosk oposk poosk oposk oopsk oopsk posok opsok psook spook ospok sopok posok opsok psook spook ospok sopok oospk oospk osopk soopk osopk soopk pokso opkso pkoso kposo okpso kopso posko opsko psoko spoko ospko sopko pksoo kpsoo pskoo spkoo kspoo skpoo okspo kospo oskpo sokpo ksopo skopo pokso opkso pkoso kposo okpso kopso posko opsko psoko spoko ospko sopko pksoo kpsoo pskoo spkoo kspoo skpoo okspo kospo oskpo sokpo ksopo skopo ooksp ooksp okosp koosp okosp koosp ooskp ooskp osokp sookp osokp sookp oksop kosop oskop sokop ksoop skoop oksop kosop oskop sokop ksoop skoop
Note: these 'words' (valid or invalid) are all the permutations of the word pooks. These words are obtained by scrambling the letters in pooks.