<http://schema.org/mainEntityOfPage>
<http://www.tweaktown.com/news/37445/google-s-glass-cost-only-80-to-build-so-why-does-it-cost-1500/index.html>
<http://www.tweaktown.com/news/37445/google-s-glass-cost-only-80-to-build-so-why-does-it-cost-1500/index.html>