(PP-DIR 
  (P 对)
                    
  (IP 
    (NP-SBJ 
      (NP 
        (NN 海外)
                    
        (NN 侨胞))
                    
      (PU 、)
                    
      (NP 
        (NP-PN 
          (NR 港))
                    
        (NP-PN 
          (NR 澳))
                    
        (NP 
          (NN 台胞))))
                    
    (VP 
      (VV 回乡)
                    
      (IP-OBJ 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (VP 
            (VCD 
              (VV 探亲)
                    
              (VV 访友)))
                    
          (PU 、)
                    
          (VP 
            (VCD 
              (VV 观光)
                    
              (VV 旅游)))
                    
          (CC 或)
                    
          (VP 
            (VV 从事)
                    
            (NP-OBJ 
              (NN 商贸)
                    
              (NN 活动))))))))
arg0: 
                    海外 侨胞 、 港 澳 台胞