<http://schema.org/userInteractionCount>
"4"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2011/10/06/alfred-says-with-the-iphone-4s-and-its-app-it-will-eliminate-the-need-for-a-search-query/photo-3-39/>