<http://schema.org/mainEntityOfPage>
<http://www.huffingtonpost.co.uk/2012/11/30/homework-is-a-waste-of-time-says-study_n_7372008.html>
<http://www.huffingtonpost.co.uk/2012/11/30/homework-is-a-waste-of-time-says-study_n_7372008.html>