<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/commentisfree/gallery/2011/may/26/egypt-revolutionary-graffiti-art"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/commentisfree/gallery/2011/may/26/egypt-revolutionary-graffiti-art?picture=375021842>