<https://namgioi.vn/cong-nghe/mo-hop-oppo-a31-man-hinh-lon-3-camera-gia-45-trieu.html#person>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://namgioi.vn/cong-nghe/mo-hop-oppo-a31-man-hinh-lon-3-camera-gia-45-trieu.html>