<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://community.skype.com/t5/Genel-tart%C4%B1%C5%9Fma-Ar%C5%9Fivler/Skype-Ve-Microsoft-Hesab%C4%B1-Ba%C4%9Flant%C4%B1s%C4%B1n%C4%B1-Kald%C4%B1rma/td-p/1530277>