<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://cdon.se/b%C3%B6cker/dunmore%2C_helen/djupet_%3A_p%C3%A5_djupt_och__farligt_vatten-4074236>