<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/books/2013/jul/07/building-letters-isaiah-berlin-digested"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/books/2013/jul/07/building-letters-isaiah-berlin-digested>