(CP 
  (WHPP-2 
    (-NONE- *OP*))
                    
  (CP 
    (IP 
      (NP-SBJ 
        (-NONE- *pro*))
                    
      (VP 
        (PP-TMP 
          (-NONE- *T*-2))
                    
        (VP 
          (VP 
            (VV 骑)
                    
            (NP-OBJ 
              (NN 车)))
                    
          (VP 
            (PP-MNR 
              (P 经过)
                    
              (NP-PN 
                (NR 园林)
                    
                (NR 四同向桥)))
                    
            (VP 
              (VV 下坡))))))
                    
    (DEC 的)))
                    
(NP 
  (NN 时候)))
arg0: 
                    *pro*          
                
argm: 
                    *T*-2 -> 时候          
                
argm: 
                    经过 园林 四同向桥