<http://schema.org/keywords>
"VOTE"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.reuters.com/article/2012/11/30/us-italy-vote-poll-idUSBRE8AT0LN20121130?feedType=RSS&feedName=worldNews&utm_source=dlvr.it&utm_medium=twitter>