<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://prima.cdnds.net/assets/16/26/640x320/landscape-1467197610-snapchat-visual.jpg>
<http://www.prima.co.uk/family/teenagers/a35617/understand-the-social-media-your-teens-are-using/>