<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.joomfreak.com/free-downloads/free-templates/2013/jf-calla-exteriors/joomla/templates/jf-calla-exteriors-joomla-25-template/details.html>