<http://schema.org/description>
"Canadian troops using a Ruston threshing machine near Amiens, northern France, during the First World War. Date: 16 August 1918"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/canadian-troops-using-ruston-threshing-machine-ww1/print/7199397.html>