<http://schema.org/keywords>
"Mumbai air traffic controller"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.hindustantimes.com/mumbai/etihad-emirates-near-miss-system-glitch-put-flights-at-risk/story-sHiCVjB5Sk6ppE9tNSc4PL.html>