. "1949-02-12Z"^^ . . . . "Blankenstein, John"@en . "2006Z"^^ . "2006-08-25Z"^^ . . "John Blankenstein (12 February 1949 in De Bilt \u2013 25 August 2006 in The Hague) was a Dutch football referee and gay rights activist. He was notable for being one of the first homosexual athletes to come out in the Netherlands."@en . . "Dutch football referee" . "1949Z"^^ .