<http://schema.org/headline>
"Saint Valentin 2013 : exemples de po\u00E8mes d\u2019amour"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.terrafemina.com/culture/livres/articles/21802-saint-valentin-2013-exemples-de-poemes-damour.html>