<http://schema.org/about>
"On July 20, 1969, the world watched as Neil Armstrong opened the hatch of the Eagle and stepped outside onto a barren lunar landscape."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/nasa-celebrates-45th-anniversary-of-apollo-11-moon-landing>