(IP 
  (NP-SBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-1))
                    
          (VP 
            (ADVP 
              (AD 原本))
                    
            (VP 
              (LB 受)
                    
              (IP-OBJ 
                (NP-SBJ 
                  (NN 同学))
                    
                (VP 
                  (VP 
                    (VV 奔跑))
                    
                  (PU 、)
                    
                  (VP 
                    (VV 喧闹)))))
                    
            (VP 
              (MSP 而)
                    
              (VP 
                (VV 扰动)))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 空气)))
                    
  (VP 
    (ADVP 
      (AD 渐渐))
                    
    (VP 
      (VRD 
        (VV 沈静)
                    
        (VV 下来)))))
arg0: 
                    *OP* *T*-1 原本 受 同学 奔跑 、 喧闹 而 扰动 的 空气 
                
argm: 
                    渐渐