(IP 
  (LCP-SBJ 
    (NP 
      (NN 湖))
                    
    (LC 中))
                    
  (VP 
    (PP 
      (P 除了)
                    
      (NP 
        (QP 
          (QP 
            (CD 一))
                    
          (QP 
            (CD 两)
                    
            (CLP 
              (M 艘))))
                    
        (CP 
          (WHNP-1 
            (-NONE- *OP*))
                    
          (CP 
            (IP 
              (NP-SBJ 
                (-NONE- *T*-1))
                    
              (VP 
                (ADVP 
                  (AD 徐徐))
                    
                (VP 
                  (VV 移动))))
                    
            (DEC 的)))
                    
        (NP 
          (NN 游艇))))
                    
    (PU ，)
                    
    (ADVP 
      (AD 便))
                    
    (VP 
      (VC 是)
                    
      (NP-PRD 
        (CP-APP 
          (IP 
            (NP-SBJ 
              (NN 群峦))
                    
            (VP 
              (VV 起伏)))
                    
          (DEC 的))
                    
        (NP 
          (NN 倒影))))))
arg1: 
                    *T*-1 
                
argm: 
                    徐徐