<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/environment/2014/apr/30/americans-unhealthy-levels-air-pollution"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/environment/2014/apr/30/americans-unhealthy-levels-air-pollution?CMP=twt_fd>