<http://schema.org/description>
"Authorities in greater Mexico City extended an air pollution alert for a fourth day, as smog levels improved slightly but pollution remained at almost 1\u00C2\u00BD "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oneindia.com/international/mexico-city-bans-many-cars-first-smog-alert-11-years-2043857.html>