n hai hai hai hai hai hai
n hai
co:i co:i
n hai hai hai hai hai hai .
n WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY
n WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY