<http://schema.org/keywords>
"Pac-12 Spring Preview 2015 Pac-12 Spring Football 2015 Pac-12 Spring Practice college football 2015 Oregon Spring Practice 2015 USC Spring Practice 2015 UCLA Spring Practice 2015 Stanford Spring Practice"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/college-football/2015/03/06/pac-12-spring-football-practice-preview>