<http://schema.org/topics>
"3g,4G,AT&amp;T,CDMA,GSM,iPhone,iPhone 4,LTE,news,Tech,trending,UMTS,verizon"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/01/11/cdma-umts-att-verizon-networks/>