<http://schema.org/about>
"The lost shipwreck of a passenger steamer that went down near the Golden Gate in San Francisco has been rediscovered."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/1800s-shipwreck-rediscovered-near-golden-gate-bridge>