<http://schema.org/keywords>
"entente de principe gr\u00E8ve \u00E9tudiante"^^<http://www.w3.org/2001/XMLSchema#string>
<http://quebec.huffingtonpost.ca/2012/05/08/associations-etudiantes-entente-principe_n_1500565.html?ref=greve-etudiante>