<http://schema.org/alternativeHeadline>
"Taken only 2 days before the Titanic sank, the photo shows a massive iceberg that matches descriptions of the one that doomed the legendary liner."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/blogs/titanic-iceberg-photo-heads-to-auction>