"2008-04-29Z"^^ . . . "1927Z"^^ . "Spratt, Frederick"@en . . . . . . "American artist" . "2008Z"^^ . . . "Frederick Spratt (1927 \u2013 April 29, 2008) was an American artist and educator, best known for his exquisite color theory paintings."@en . . "Frederick Spratt"@en . "1927-05-22Z"^^ .