<http://schema.org/keywords>
"US"^^<http://www.w3.org/2001/XMLSchema#string>
<http://in.reuters.com/article/2012/04/11/us-mckesson-va-idINBRE83A1H420120411?feedType=RSS&feedName=health&WT.tsrc=Social+Media&WT.z_smid=twtr-RtrsIN_Health&WT.z_smid_dest=Twitter&dlvrit=70632>