<http://schema.org/description>
"Lions wide receiver Calvin Johnson is walking away from football after nine seasons at the age of 30, which makes his body of work even more impressive.\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2016/03/08/detroit-lions-calvin-johnson-retirement-200-yard-games-record>