<http://schema.org/topics>
"3D printing,Fashion,iPhone,iphone case,Lifestyle,Travel,Travel &amp; Leisure,Uncategorized,Work &amp;amp; Play"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/05/10/3d-printed-shoes-have-built-in-iphone-case/>