<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.tanga.com/users/new?return_path=%2Fdeals%2Fc9b8750dd3%2Fwhitening-lightning-bright-express-professional-teeth-whitening-kit%3Finternal_campaign%3Dfront_top_sellers>