. "Otto Olsen"@en . "1894-12-12Z"^^ . "Olsen, Otto"@en . . "Otto Olsen (12 December 1894 \u2013 24 October 1989) was a Danish modern pentathlete. He competed at the 1924 and 1928 Summer Olympics."@en . "1989Z"^^ . . "Modern pentathlete" . "1894Z"^^ . "1989-10-24Z"^^ . .