(S (S (PP-SBJ (SBAR (SBAR (S (PP (NP (PP (BASENP (NN 彼)) (IN の)) (NN 身体)) (IN に)) (S (PP-SBJ (NP (PP (BASENP (NN 他)) (IN の)) (NN 毒素)) (IN が)) (VP (VBV あっ) (VP (MD た))))) (INFKB か)) (ADVP (RB どう) (INFKB か))) (IN は)) (VP (VP (VP (VBO 知ら) (VP (VBV れ))) (INTE て)) (VP (VBO い) (VP (MD ない))))) (PERIOD 。))
彼 の 身体 に 他 の 毒素 が あっ た か どう か は 知ら れ て い ない 。
It is unknown if there were any other poisons in his system .