<http://schema.org/headline>
"Duchess Kate Middleton says baby due in mid-July"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Entertainment_News/2013/04/05/Duchess-Kate-Middleton-says-baby-due-in-mid-July/UPI-15471365177350/?pvn=1>