<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.genengnews.com/Login.aspx?ReturnURL=%2Fgen-news-highlights%2Fsigma-aldrich-to-distribute-ab-sciex-consumables%2F81247281%2F>