<http://schema.org/description>
"The NFL\u2019s history is one of constant attack and counterattack. A closer look at where the arms race between offense and defense stands entering the 2016 season.\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2016/07/22/nfl-offense-defense-innovations-future-schemes>