bytoo ybtoo btyoo tbyoo ytboo tyboo byoto yboto boyto obyto yobto oybto btoyo tboyo botyo obtyo tobyo otbyo ytobo tyobo yotbo oytbo toybo otybo bytoo ybtoo btyoo tbyoo ytboo tyboo byoto yboto boyto obyto yobto oybto btoyo tboyo botyo obtyo tobyo otbyo ytobo tyobo yotbo oytbo toybo otybo byoot yboot boyot obyot yobot oybot byoot yboot boyot obyot yobot oybot booyt oboyt booyt oboyt oobyt oobyt yoobt oyobt yoobt oyobt ooybt ooybt btooy tbooy botoy obtoy toboy otboy btooy tbooy botoy obtoy toboy otboy booty oboty booty oboty oobty oobty tooby otoby tooby otoby ootby ootby ytoob tyoob yotob oytob toyob otyob ytoob tyoob yotob oytob toyob otyob yootb oyotb yootb oyotb ooytb ooytb tooyb otoyb tooyb otoyb ootyb ootyb
Note: these 'words' (valid or invalid) are all the permutations of the word bytoo. These words are obtained by scrambling the letters in bytoo.