<http://schema.org/dateModified>
"2013-03-12"^^<http://schema.org/Date>
<http://thenextweb.com/google/2013/03/12/google-x-lab-will-reveal-another-moonshot-next-month-but-its-not-working-on-a-space-elevator/?awesm=tnw.to_d0WIh>