poofs opofs poofs opofs oopfs oopfs pofos opfos pfoos fpoos ofpos fopos pofos opfos pfoos fpoos ofpos fopos oofps oofps ofops foops ofops foops poosf oposf poosf oposf oopsf oopsf posof opsof psoof spoof ospof sopof posof opsof psoof spoof ospof sopof oospf oospf osopf soopf osopf soopf pofso opfso pfoso fposo ofpso fopso posfo opsfo psofo spofo ospfo sopfo pfsoo fpsoo psfoo spfoo fspoo sfpoo ofspo fospo osfpo sofpo fsopo sfopo pofso opfso pfoso fposo ofpso fopso posfo opsfo psofo spofo ospfo sopfo pfsoo fpsoo psfoo spfoo fspoo sfpoo ofspo fospo osfpo sofpo fsopo sfopo oofsp oofsp ofosp foosp ofosp foosp oosfp oosfp osofp soofp osofp soofp ofsop fosop osfop sofop fsoop sfoop ofsop fosop osfop sofop fsoop sfoop
Note: these 'words' (valid or invalid) are all the permutations of the word poofs. These words are obtained by scrambling the letters in poofs.