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We found that the emission line spectrum of the blazar is characterised by only one broad emission line that interpreted as Mg II 2800 {\\AA} yields z=0.95. In addition we detect narrow absorption lines of Mg II 2800 {\\AA} and Ca II (H,K) and Na I 5892 {\\AA} at z=0.68437 +/- 0.00005 due to intervening interstellar gas. No stellar absorption features attributable to the lens galaxy are revealed. 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