I'm trying to use structured data to ensure that a website contains a category in googles search results. You can see what I mean in this example:http://tinyurl.com/95lryvnIn the example it shows 'Ergonomic Chairs' as the category.I've been trying to replicate this by using the following:Breadcrumbs\[code\]<div itemprop="breadcrumb"> <a href="http://stackoverflow.com/">Home</a> > <a href="http://stackoverflow.com/sets/AlaraReborn/index.html" itemprop="isPartOf">Alara Reborn</a> > <a href="http://stackoverflow.com/questions/12802419/ArdentPlea.html">Ardent Plea</a></div>\[/code\]The schema.org isPartOf itemProp (also visible in the above code sample), but I still am unable to get the category to appear.Would anyone possibly be able to post a short sample that will display a category when tested via googles structured data tester?