<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/society/sarah-boseley-global-health/2010/jul/01/vaccines-world-health-organisation"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/society/sarah-boseley-global-health/2010/jul/01/vaccines-world-health-organisation>