ma ma ma nam nam nam
ma ma ma nam nam nam .
m a WORD_BOUNDARY m a WORD_BOUNDARY m a WORD_BOUNDARY n a m WORD_BOUNDARY n a m WORD_BOUNDARY n a m WORD_BOUNDARY
m a WORD_BOUNDARY m a WORD_BOUNDARY m a WORD_BOUNDARY n a m WORD_BOUNDARY n a m WORD_BOUNDARY n a m WORD_BOUNDARY . WORD_BOUNDARY