<http://schema.org/keywords>
"petroleum, petroleum refinery, separator, Erd\u00F6l, Raffinerie, Abscheider, p\u00E9troliers, les raffineries de p\u00E9trole, de s\u00E9paration, petr\u00F3leo, refinarias de petr\u00F3leo, separador, "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bibliocad.com/library/pig-receiver_39422>