o iya buku baru ya
o iya buku baru ya ?
o WORD_BOUNDARY  i j a WORD_BOUNDARY b u k u WORD_BOUNDARY b a r u WORD_BOUNDARY j a WORD_BOUNDARY
o WORD_BOUNDARY i y a WORD_BOUNDARY b u k u WORD_BOUNDARY b a r u WORD_BOUNDARY y a WORD_BOUNDARY