(VP (VV 寻找) (NP-OBJ (CP (WHNP-2 (-NONE- *OP*)) (CP (IP (NP-SBJ (-NONE- *T*-2)) (VP (VV 可能) (VP (VV 生还)))) (DEC 的))) (NP (NN 幸存者)))) arg0: *T*-2