<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ecartec.com/index.php?id=7&L=4%2FMATERIALICA_2011_Ausstellerinformation.pdf&tx_ttnews[tt_news]=413&cHash=e9b01c1f69c2d7dfb419ce8c2f0b83c6>