<http://schema.org/keywords>
"neil walker neil walker injury neil walker out for season neil walker back neil walker surgery neil walker mets neil walker out neil walker injured neil walker update"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/mlb/2016/08/31/neil-walker-new-york-mets-back-surgery-out-season>