<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://direct.asda.com/Shop-By-Department/D22M6G1,default,sc.html?cm_sp=grgaprilshowersbaby-_-catbanner-_-link1shopall4042013>