<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.codingforums.com/java-and-jsp/209599-javamail-how-search-email-multiple-folders-once.html?s=807afc25e41bcef964b6c1f5dc5f7b11>