du duk du duk du duk du duk du duk
du duk du duk du duk du duk du duk .
d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY
d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY d u WORD_BOUNDARY d u k WORD_BOUNDARY . WORD_BOUNDARY