(IP-SBJ 
  (NP-SBJ 
    (CP-APP 
      (IP 
        (NP-SBJ 
          (NP-APP 
            (NP-PN 
              (NR 美国)
                    
              (NR 民主党))
                    
            (NP 
              (NN 总统)
                    
              (NN 候选人)))
                    
          (NP-PN 
            (NR 戈尔)))
                    
        (VP 
          (VV 挑战)
                    
          (NP-OBJ 
            (DNP 
              (NP 
                (NP-PN 
                  (NR 佛罗里达州))
                    
                (NP 
                  (NN 选举)))
                    
              (DEG 的))
                    
            (NP 
              (NN 结果)))))
                    
      (DEC 的))
                    
    (NP 
      (NN 努力)))
                    
  (VP 
    (VV 成功)))
                    
(VP 
  (VV 与否)))
arg0: 
                    美国 民主党 总统 候选人 戈尔 挑战 佛罗里达州 选举 的 结果 的 努力 成功