bothy obthy btohy tbohy otbhy tobhy bohty obhty bhoty hboty ohbty hobty bthoy tbhoy bhtoy hbtoy thboy htboy othby tohby ohtby hotby thoby htoby botyh obtyh btoyh tboyh otbyh tobyh boyth obyth byoth yboth oybth yobth btyoh tbyoh bytoh ybtoh tyboh ytboh otybh toybh oytbh yotbh tyobh ytobh bohyt obhyt bhoyt hboyt ohbyt hobyt boyht obyht byoht yboht oybht yobht bhyot hbyot byhot ybhot hybot yhbot ohybt hoybt oyhbt yohbt hyobt yhobt bthyo tbhyo bhtyo hbtyo thbyo htbyo btyho tbyho bytho ybtho tybho ytbho bhyto hbyto byhto ybhto hybto yhbto thybo htybo tyhbo ythbo hytbo yhtbo othyb tohyb ohtyb hotyb thoyb htoyb otyhb toyhb oythb yothb tyohb ytohb ohytb hoytb oyhtb yohtb hyotb yhotb thyob htyob tyhob ythob hytob yhtob
Note: these 'words' (valid or invalid) are all the permutations of the word bothy. These words are obtained by scrambling the letters in bothy.