<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.codingforums.com/dom-and-json-scripting/281832-change-span-tag-text-using-dropdown-select.html?s=35afda3f9e0f13295b5a5c74c03c5f7e>