<https://secure.gravatar.com/avatar/6715244a1056a33581a8f060f654e2b2?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ictsaigon.com.vn/camera-ip-ptz-2mp-hikvision-ds-2cd1p23g0-i/>