<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.e-teach.ch/blog/?post/2010/10/07/La-promotion-%C3%A9conomique-du-canton-de-Vaud-crois-aux-Serious-Games-!>