<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://netdoctor.cdnds.net/16/29/980x490/landscape-1469096964-osteoporosis.jpg>
<http://www.netdoctor.co.uk/healthy-living/a26779/osteoporosis-affects-the-face-too/>