sofar osfar sfoar fsoar ofsar fosar soafr osafr saofr asofr oasfr aosfr sfaor fsaor safor asfor fasor afsor ofasr foasr oafsr aofsr faosr afosr sofra osfra sfora fsora ofsra fosra sorfa osrfa srofa rsofa orsfa rosfa sfroa fsroa srfoa rsfoa frsoa rfsoa ofrsa forsa orfsa rofsa frosa rfosa soarf osarf saorf asorf oasrf aosrf soraf osraf sroaf rsoaf orsaf rosaf sarof asrof sraof rsaof arsof rasof oarsf aorsf orasf roasf arosf raosf sfaro fsaro safro asfro fasro afsro sfrao fsrao srfao rsfao frsao rfsao sarfo asrfo srafo rsafo arsfo rasfo farso afrso fraso rfaso arfso rafso ofars foars oafrs aofrs faors afors ofras foras orfas rofas froas rfoas oarfs aorfs orafs roafs arofs raofs faros afros fraos rfaos arfos rafos
Note: these 'words' (valid or invalid) are all the permutations of the word sofar. These words are obtained by scrambling the letters in sofar.