<http://schema.org/target>
"android-app://com.guardian/https/www.theguardian.com/uk/gallery/2009/aug/19/britain-heatwave-weather"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.theguardian.com/uk/gallery/2009/aug/19/britain-heatwave-weather?picture=351844845>