nen nen neeennn iiii buuuuuu iiiiii
nen nen neeennn iiii buuuuuu iiiiii .
n e n WORD_BOUNDARY n e n WORD_BOUNDARY n e e e n n n WORD_BOUNDARY i i i i WORD_BOUNDARY β u u u u u u WORD_BOUNDARY i i i i i i WORD_BOUNDARY
n e n WORD_BOUNDARY n e n WORD_BOUNDARY n e e e n n n WORD_BOUNDARY i i i i WORD_BOUNDARY b u u u u u u WORD_BOUNDARY i i i i i i WORD_BOUNDARY . WORD_BOUNDARY