(S (S (SBAR-SBJ (S (PP-SBJ (BASENP (NN 男)) (IN は)) (VP (PP (BASENP (NN 警察) (NN 署)) (IN で)) (VP (PP (BASENP (NN 警察官)) (IN から)) (VP (PP-OBJ (BASENP (NN 鍵)) (IN を)) (VP (VBV 盗ん) (VP (MD だ))))))) (INQT と)) (VP (VBO 思わ) (VP (VB れる)))) (PERIOD 。))
男 は 警察 署 で 警察官 から 鍵 を 盗ん だ と 思わ れる 。
It is thought that the man stole the key from an officer at the station .