<http://schema.org/mainEntityOfPage>
<http://www.vietnamplus.vn/the-independent-tong-thong-obama-tham-anh-trong-thang-toi/375819.vnp>
<http://www.vietnamplus.vn/the-independent-tong-thong-obama-tham-anh-trong-thang-toi/375819.vnp>