o dolanan halo+halo to
o dolanan halo halo to .
o WORD_BOUNDARY d o l a n a n WORD_BOUNDARY h a l o WORD_BOUNDARY h a l o WORD_BOUNDARY t o WORD_BOUNDARY
o WORD_BOUNDARY d o l a n a n WORD_BOUNDARY h a l o WORD_BOUNDARY h a l o WORD_BOUNDARY t o WORD_BOUNDARY