<http://schema.org/primaryImageOfPage>
"http://media.mnn.com/assets/images/2010/09/caterpillar_4.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/photos/10-ways-animals-have-served-the-military/insect-cyborgs>