<http://schema.org/keywords>
"water, clouds, port, california, panorama, skyline, december, los angeles, cities, ships, harbor, long beach, queen mary, san pedro, boarts, southern califiornia"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/21047979/long-beach-california-panorama-by-david-baker>