<http://schema.org/headline>
"Lady Gaga climbs US Hot 100 chart, Robin Thicke keeps No.1"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/music/us-billboard-chart/news/a510900/lady-gaga-climbs-us-hot-100-chart-robin-thicke-keeps-no1/>