cot cot cot cot cot cot cot
cot cot cot cot cot cot cot
co co co co co co co
cot cot cot cot cot cot cot .
k o WORD_BOUNDARY k o WORD_BOUNDARY k o WORD_BOUNDARY k o WORD_BOUNDARY k o WORD_BOUNDARY k o WORD_BOUNDARY k o WORD_BOUNDARY
c o t WORD_BOUNDARY c o t WORD_BOUNDARY c o t WORD_BOUNDARY c o t WORD_BOUNDARY c o t WORD_BOUNDARY c o t WORD_BOUNDARY c o t WORD_BOUNDARY