(IP-OBJ 
  (PU “)
                    
  (NP-SBJ 
    (PN 它))
                    
  (VP 
    (PP-LOC 
      (P 在)
                    
      (LCP 
        (NP 
          (CP-APP 
            (IP 
              (NP-SBJ 
                (-NONE- *PRO*))
                    
              (VP 
                (VV 统一)
                    
                (NP-OBJ 
                  (NP 
                    (PN 其))
                    
                  (NP 
                    (NN 外交)
                    
                    (CC 和)
                    
                    (NN 安全))
                    
                  (NP 
                    (NN 政策)))))
                    
            (DEC 的))
                    
          (NP 
            (NN 道路)))
                    
        (LC 上)))
                    
    (ADVP 
      (AD 又))
                    
    (VP 
      (VV 前进)
                    
      (AS 了)
                    
      (QP-OBJ 
        (CD 一)
                    
        (CLP 
          (M 步))))))
arg0: 
                    它 
                
arg1: 
                    一 步 
                
argm: 
                    又 
                
argm: 
                    在 *PRO* 统一 其 外交 和 安全 政策 的 道路 上 
                

(IP-OBJ 
  (IP 
    (NP-SBJ 
      (PN 这))
                    
    (VP 
      (VC 是)
                    
      (NP-PRD 
        (CP 
          (WHNP-1 
            (-NONE- *OP*))
                    
          (CP 
            (IP 
              (NP-SBJ 
                (-NONE- *T*-1))
                    
              (VP 
                (LCP-LOC 
                  (IP 
                    (NP-SBJ 
                      (NP 
                        (QP 
                          (CD 两))
                    
                        (NP 
                          (NN 国)))
                    
                      (NP 
                        (NN 关系)))
                    
                    (VP 
                      (VV 前进)))
                    
                  (LC 中))
                    
                (VP 
                  (VV 出现))))
                    
            (DEC 的)))
                    
        (NP 
          (NN 问题))))))
arg0: 
                    两 国 关系