rarra arrra rrara rrara arrra rarra rarra arrra rrara rrara arrra rarra rrraa rrraa rrraa rrraa rrraa rrraa arrra rarra arrra rarra rrara rrara rarar arrar rraar rraar arrar rarar raarr ararr raarr ararr aarrr aarrr rraar rraar rarar arrar rarar arrar ararr raarr aarrr aarrr raarr ararr rarar arrar rraar rraar arrar rarar raarr ararr raarr ararr aarrr aarrr rraar rraar rarar arrar rarar arrar ararr raarr aarrr aarrr raarr ararr rrraa rrraa rrraa rrraa rrraa rrraa rrara rrara rarra arrra rarra arrra rrara rrara rarra arrra rarra arrra rrara rrara rarra arrra rarra arrra arrar rarar arrar rarar rraar rraar ararr raarr aarrr aarrr raarr ararr ararr raarr aarrr aarrr raarr ararr rraar rraar rarar arrar rarar arrar
Note: these 'words' (valid or invalid) are all the permutations of the word rarra. These words are obtained by scrambling the letters in rarra.