<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebPage>
<http://www.upi.com/Science_News/2012/03/25/SciTechTalk-Physical-psychiatric-issues-face-multiyear-space-voyagers/UPI-78391332669600/?st_rec=82701340533860>