<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.codingforums.com/mysql/292726-1064-you-have-error-your-sql-syntax;.html?s=a7d929b68036a2587b2d4c7d43a9bc9e>