(IP-OBJ 
  (IP 
    (NP-SBJ 
      (PN 这))
                    
    (VP 
      (VC 是)
                    
      (NP-PRD 
        (CP 
          (WHNP-1 
            (-NONE- *OP*))
                    
          (CP 
            (IP 
              (NP-PN-SBJ 
                (NR 李伟))
                    
              (VP 
                (VV 训养)
                    
                (NP-OBJ 
                  (-NONE- *T*-1))))
                    
            (DEC 的)))
                    
        (NP 
          (NN 警犬)))))
                    
  (PU ，)
                    
  (CP 
    (IP 
      (IP-ADV 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (ADVP 
            (AD 不))
                    
          (VP 
            (VV 知)
                    
            (IP-OBJ 
              (NP-SBJ 
                (-NONE- *pro*))
                    
              (VP 
                (ADVP-WH 
                  (AD 怎么))
                    
                (PP-DIR 
                  (P 从)
                    
                  (LCP 
                    (NP 
                      (NN 犬舍))
                    
                    (LC 里)))
                    
                (VP 
                  (VRD 
                    (VV 偷跑)
                    
                    (VV 出来))))))))
                    
      (PU ，)
                    
      (NP-SBJ 
        (-NONE- *pro*))
                    
      (VP 
        (ADVP 
          (AD 正在))
                    
        (VP 
          (VV 找)
                    
          (NP-OBJ 
            (DNP 
              (NP 
                (PN 它))
                    
              (DEG 的))
                    
            (NP 
              (NN 主人))))))
                    
    (SP 呢)))
arg0: 
                    *pro* 
                
argm: 
                    从 犬舍 里 
                
argm: 
                    怎么