ni tanda tangan siapa
ni tanda tangan siapa ?
n i WORD_BOUNDARY t a n d a WORD_BOUNDARY t a ŋ a n WORD_BOUNDARY s i a p a WORD_BOUNDARY
n i WORD_BOUNDARY t a n d a WORD_BOUNDARY t a n g a n WORD_BOUNDARY s i a p a WORD_BOUNDARY ? WORD_BOUNDARY