<http://schema.org/topics>
"cats,Memes,muppets,Oscar the Grouch,Photography,sesame street,Television,Uncategorized,Video,Videos,viral video,Watercooler"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/11/12/oscar-the-grouch-grumpy-cat/>