<http://schema.org/about>
"Cindy McCain, wife of Sen. John McCain and a migraine sufferer for 20 years, talks about bringing more awareness to the painful condition."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/videos/cindy-mccain-migraine-pain-is-indescribable>