<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/environment/2012/jun/15/rio-20-earth-summit-ban-ki-moon"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/environment/2012/jun/15/rio-20-earth-summit-ban-ki-moon?commentpage=all>