(IP 
  (NP-SBJ 
    (NP-PN 
      (NR 中)
                    
      (NR 美))
                    
    (NP 
      (NN 关系)))
                    
  (VP 
    (VP 
      (ADVP 
        (AD 之所以))
                    
      (VP 
        (VV 出现)
                    
        (NP-OBJ 
          (DNP 
            (NP 
              (NT 今天))
                    
            (DEG 的))
                    
          (NP 
            (NN 局面)))))
                    
    (PU ，)
                    
    (VP 
      (IP-ADV 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (VV 归根结底)))
                    
      (PU ，)
                    
      (VP 
        (VC 是)
                    
        (IP-OBJ 
          (NP-SBJ 
            (PN 双方))
                    
          (VP 
            (VRD 
              (VV 认识)
                    
              (VV 到))
                    
            (IP-OBJ 
              (IP-SBJ 
                (NP-SBJ 
                  (-NONE- *PRO*))
                    
                (VP 
                  (VP 
                    (VV 加强)
                    
                    (NP-OBJ 
                      (-NONE- *RNR*-1)))
                    
                  (CC 和)
                    
                  (VP 
                    (VV 发展)
                    
                    (NP-OBJ-1 
                      (NP 
                        (PN 相互))
                    
                      (NP 
                        (NN 关系))))))
                    
              (VP 
                (VV 符合)
                    
                (NP-OBJ 
                  (DNP 
                    (NP 
                      (QP 
                        (CD 两))
                    
                      (NP 
                        (NN 国)))
                    
                    (DEG 的))
                    
                  (NP 
                    (NN 根本)
                    
                    (NN 利益)))))))))))
arg0: 
                    *PRO*