halaman dua dulu halaman dua
halaman dua dulu halaman dua .
h a l a m a n WORD_BOUNDARY d u a WORD_BOUNDARY d u l u WORD_BOUNDARY h a l a m a n WORD_BOUNDARY d u a WORD_BOUNDARY
h a l a m a n WORD_BOUNDARY d u a WORD_BOUNDARY d u l u WORD_BOUNDARY h a l a m a n WORD_BOUNDARY d u a WORD_BOUNDARY . WORD_BOUNDARY