midis imdis mdiis dmiis idmis dimis miids imids miids imids iimds iimds mdiis dmiis midis imdis dimis idmis idims diims iidms iidms diims idims midsi imdsi mdisi dmisi idmsi dimsi misdi imsdi msidi smidi ismdi simdi mdsii dmsii msdii smdii dsmii sdmii idsmi dismi isdmi sidmi dsimi sdimi miisd imisd miisd imisd iimsd iimsd misid imsid msiid smiid ismid simid misid imsid msiid smiid ismid simid iismd iismd isimd siimd isimd siimd mdisi dmisi midsi imdsi dimsi idmsi mdsii dmsii msdii smdii dsmii sdmii misdi imsdi msidi smidi ismdi simdi dismi idsmi dsimi sdimi isdmi sidmi idism diism iidsm iidsm diism idism idsim disim isdim sidim dsiim sdiim iisdm iisdm isidm siidm isidm siidm disim idsim dsiim sdiim isdim sidim
Note: these 'words' (valid or invalid) are all the permutations of the word midis. These words are obtained by scrambling the letters in midis.