<http://schema.org/about>
"It was finally announced that this Saturday the capital of Argentina will have its second major Earth Day celebration (first was in 2008): a festival that will include several concerts, organic food, yoga classes and"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/earth-day-hits-buenos-aires-with-music-festival-this-saturday.html>