<http://schema.org/headline>
"Police: Gunman disarmed by student at Seattle Pacific University; 4 shot, 1 dead"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.sbsun.com/general-news/20140605/police-gunman-disarmed-by-student-at-seattle-pacific-university-4-shot-1-dead>