sorbs osrbs srobs rsobs orsbs rosbs sobrs osbrs sbors bsors obsrs bosrs srbos rsbos sbros bsros rbsos brsos orbss robss obrss borss rboss bross sorsb osrsb srosb rsosb orssb rossb sosrb ossrb ssorb ssorb ossrb sosrb srsob rssob ssrob ssrob rssob srsob orssb rossb osrsb sorsb rsosb srosb sobsr osbsr sbosr bsosr obssr bossr sosbr ossbr ssobr ssobr ossbr sosbr sbsor bssor ssbor ssbor bssor sbsor obssr bossr osbsr sobsr bsosr sbosr srbso rsbso sbrso bsrso rbsso brsso srsbo rssbo ssrbo ssrbo rssbo srsbo sbsro bssro ssbro ssbro bssro sbsro rbsso brsso rsbso srbso bsrso sbrso orbss robss obrss borss rboss bross orsbs rosbs osrbs sorbs rsobs srobs obsrs bosrs osbrs sobrs bsors sbors rbsos brsos rsbos srbos bsros sbros
Note: these 'words' (valid or invalid) are all the permutations of the word sorbs. These words are obtained by scrambling the letters in sorbs.