<http://schema.org/valueRequired>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<http://www.evmanya.com/urun/523963-esty-davlumbaz-ocak-firin-ankastre-set-3-beyaz-2240-beyaz-davlumbaz-cs5319w-ocak-ef-6174-w-firin>