<http://schema.org/description>
"The M-3 Grant/Lee Medium Tank was developed to help the United States face the growing threat of World War II. Except for a few T-4s, no medium tank was produced in the inter-war period. Explore the M-3 Grant/Lee Medium Tank."^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/m-3-grant-lee-medium-tank1.htm>