_:n4e164c620206428cb6ede972aeaff130xb5
<http://schema.org/valueRequired>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<https://danmar-computers.com.pl/en/projekty-archiwum/europejskie/eu2011/getafix-ldv/attachment/sitcom-8/>