<http://schema.org/headline>
"Learn how to build compelling 3D apps using Cascades and OpenGL ES in the fourth Cascades webcast"^^<http://www.w3.org/2001/XMLSchema#string>
<http://crackberry.com/learn-how-build-compelling-3d-apps-using-cascades-and-opengl-es-fouth-cascades-webcast>