<http://schema.org/keywords>
"bsnl call drops"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.hindustantimes.com/business/telecom-regulator-s-call-drop-test-results-will-be-out-soon/story-5u8rqYGSB5tY31MEgJs4uI.html>