<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mightyrabbitstudios.com/?A-Comparison-Of-Three-Methods-Of-Measuring-Surface-Currents-In-The-Sea--Radar--Current-Meters-And-Surface-Drifters.pdf>