<http://schema.org/keywords>
"caster semenya Caster Semenya gold womens 800m womens 800m winner rio olympics track and field olympic track and field"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/olympics/2016/08/20/south-africa-caster-semenya-gold-800m-race-olympics>