(IP 
  (NP-SBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-1))
                    
          (VP 
            (ADVP 
              (AD 平时))
                    
            (ADVP 
              (AD 不))
                    
            (VP 
              (VV 谙)
                    
              (NP-OBJ 
                (NN 水性)))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 旅客)))
                    
  (PU ，)
                    
  (VP 
    (ADVP 
      (AD 也))
                    
    (VP 
      (VV 能)
                    
      (VP 
        (ADVP 
          (AD 一))
                    
        (VP 
          (VV 享)
                    
          (NP-OBJ 
            (LCP 
              (NP 
                (NN 海))
                    
              (LC 底))
                    
            (NP 
              (NN 风光))))))))
arg0: 
                    *T*-1 
                
arg1: 
                    水性 
                
argm: 
                    不 
                
argm: 
                    平时