<http://schema.org/userInteractionCount>
"237"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2013/03/12/tnw-pick-of-the-day-onetab-for-chrome-condenses-all-your-tabs-into-a-single-list-to-save-memory/>