<http://schema.org/alternativeHeadline>
"The riddle of mysterious ancient stone wall structures found in the dessert in Syria has been solved by researchers who've discovered evidence of the mass, ritual slaughter of a herd of Gazelles."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/ancient-herders-walls-guided-gazelles-to-mass-slaughter>