<http://schema.org/headline>
"Glitch in Final Scene at &amp;#8216;Das Rheingold&amp;#8217; Premiere"^^<http://www.w3.org/2001/XMLSchema#string>
<http://blogs.wsj.com/metropolis/2010/09/28/das-rheingold-premiere-wagner-ring-cycle-met-oper/>