<http://schema.org/openingHours>
"Mo 09:30-18:00, Tu 09:30-18:00, We 09:30-18:00, Th 09:30-18:00, Fr 09:30-18:00"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.the-partners.com/national-gallery-identity>