<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.songlyrics.com/search.php?key=jim+reeves&x=0&y=0&sb%5B0%5D=_author&sb%5B1%5D=_album&sb%5B2%5D=_name>