wi u wi u wi u wi u
wi u wi u wi u wi u .
w i WORD_BOUNDARY u WORD_BOUNDARY w i WORD_BOUNDARY u WORD_BOUNDARY w i WORD_BOUNDARY u WORD_BOUNDARY w i WORD_BOUNDARY u WORD_BOUNDARY
w i WORD_BOUNDARY u WORD_BOUNDARY w i WORD_BOUNDARY u WORD_BOUNDARY w i WORD_BOUNDARY u WORD_BOUNDARY w i WORD_BOUNDARY u WORD_BOUNDARY