<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://discuss.cocos2d-x.org/t/unable-to-create-xap-for-cocos2dx-2-1-0-wp8-alpha-2-0-throught-visual-studio-2012-for-windows-phone-8/6532>