booth oboth booth oboth oobth oobth botoh obtoh btooh tbooh otboh toboh botoh obtoh btooh tbooh otboh toboh ootbh ootbh otobh toobh otobh toobh booht oboht booht oboht oobht oobht bohot obhot bhoot hboot ohbot hobot bohot obhot bhoot hboot ohbot hobot oohbt oohbt ohobt hoobt ohobt hoobt botho obtho btoho tboho otbho tobho bohto obhto bhoto hboto ohbto hobto bthoo tbhoo bhtoo hbtoo thboo htboo othbo tohbo ohtbo hotbo thobo htobo botho obtho btoho tboho otbho tobho bohto obhto bhoto hboto ohbto hobto bthoo tbhoo bhtoo hbtoo thboo htboo othbo tohbo ohtbo hotbo thobo htobo oothb oothb otohb toohb otohb toohb oohtb oohtb ohotb hootb ohotb hootb othob tohob ohtob hotob thoob htoob othob tohob ohtob hotob thoob htoob
Note: these 'words' (valid or invalid) are all the permutations of the word booth. These words are obtained by scrambling the letters in booth.