<http://schema.org/image_url>
"http://media.al.com/business_impact/photo/nissan-announces-unprecedented-autonomous-drive-benchmarks-1013f4c3f7b95f38.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2014/06/driverless_car_technology_a_by.html>