<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.genengnews.com/Registration.aspx?ReturnURL=%2Fgen-articles%2Fmetabolite-profiling-powered-by-mass-spec%2F3371%2F%3Fpage%3D2>