<http://schema.org/thumbnailUrl>
<http://images.bwbx.io/cms/2014-02-13/0213-bangka-island-tin-630x420.jpg>
<http://www.bloomberg.com/bw/articles/2014-02-13/apple-supply-report-acknowledges-its-smartphones-and-tablets-rely-on-smelters-using-illegally-mined-tin>