<http://schema.org/description>
"London, Sept 9 (ANI): Former British PM Tony Blair had cancelled another  event  to launch his book, A Journey, at  London's  Tate Modern over threats from protesters."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oneindia.com/2010/09/09/tonyblair-calls-off-book-bash-over-protestthreat.html>