(IP 
  (NP-SBJ 
    (PN 它们))
                    
  (VP 
    (VP 
      (ADVP 
        (AD 彷佛))
                    
      (VP 
        (LB 被)
                    
        (CP-OBJ 
          (WHNP-4 
            (-NONE- *OP*))
                    
          (IP 
            (NP-SBJ 
              (CP 
                (WHNP-2 
                  (-NONE- *OP*))
                    
                (CP 
                  (IP 
                    (NP-SBJ 
                      (-NONE- *T*-2))
                    
                    (VP 
                      (VCD 
                        (VV 相依)
                    
                        (VV 相持))
                    
                      (QP-EXT 
                        (CD 千)
                    
                        (CLP 
                          (M 年)))))
                    
                  (DEC 的)))
                    
              (NP 
                (NN 同伴)))
                    
            (VP 
              (VV 离弃)
                    
              (NP-OBJ 
                (-NONE- *T*-4)))))))
                    
    (PU ，)
                    
    (VP 
      (DVP 
        (VP 
          (VA 孤独)))
                    
      (VP 
        (VV 承受)
                    
        (NP-OBJ 
          (NN 环境)
                    
          (NN 压力))))))
arg0: 
                    *OP* *T*-2 相依 相持 千 年 的 同伴 
                
arg1: 
                    它们 
                
argm: 
                    彷佛