<http://schema.org/position>
"1"^^<http://www.w3.org/2001/XMLSchema#integer>
<http://www.cbsnews.com/videos/advantage-of-holding-kids-back/?lumiereId=50120983&videoId=67716fe2-8bdf-11e2-9400-029118418759&cbsId=7400876&site=cbsnews>