wu wu wu wu wu wuk
wu wu wu wu wu wuk .
w u WORD_BOUNDARY w u WORD_BOUNDARY w u WORD_BOUNDARY w u WORD_BOUNDARY w u WORD_BOUNDARY w u k WORD_BOUNDARY
w u WORD_BOUNDARY w u WORD_BOUNDARY w u WORD_BOUNDARY w u WORD_BOUNDARY w u WORD_BOUNDARY w u k WORD_BOUNDARY