tac tac tac tac tac tac
tac
co
tac tac tac tac tac tac .
t a k WORD_BOUNDARY t a k WORD_BOUNDARY t a k WORD_BOUNDARY t a k WORD_BOUNDARY t a k WORD_BOUNDARY t a k WORD_BOUNDARY
t a c WORD_BOUNDARY t a c WORD_BOUNDARY t a c WORD_BOUNDARY t a c WORD_BOUNDARY t a c WORD_BOUNDARY t a c WORD_BOUNDARY