nboss bnoss nobss onbss bonss obnss nbsos bnsos nsbos snbos bsnos sbnos nosbs onsbs nsobs snobs osnbs sonbs bosns obsns bsons sbons osbns sobns nboss bnoss nobss onbss bonss obnss nbsos bnsos nsbos snbos bsnos sbnos nosbs onsbs nsobs snobs osnbs sonbs bosns obsns bsons sbons osbns sobns nbsso bnsso nsbso snbso bsnso sbnso nbsso bnsso nsbso snbso bsnso sbnso nssbo snsbo nssbo snsbo ssnbo ssnbo bssno sbsno bssno sbsno ssbno ssbno nossb onssb nsosb snosb osnsb sonsb nossb onssb nsosb snosb osnsb sonsb nssob snsob nssob snsob ssnob ssnob ossnb sosnb ossnb sosnb ssonb ssonb bossn obssn bsosn sbosn osbsn sobsn bossn obssn bsosn sbosn osbsn sobsn bsson sbson bsson sbson ssbon ssbon ossbn sosbn ossbn sosbn ssobn ssobn
Note: these 'words' (valid or invalid) are all the permutations of the word nboss. These words are obtained by scrambling the letters in nboss.