(IP 
  (IP 
    (NP-SBJ 
      (-NONE- *pro*))
                    
    (VP 
      (VV 试试)
                    
      (IP-OBJ 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (NP-TMP 
            (NT 周末))
                    
          (VP 
            (VV 选修)
                    
            (NP-OBJ 
              (QP 
                (CD 一)
                    
                (CLP 
                  (M 门)))
                    
              (NP 
                (NN 课))))))))
                    
  (PU ，)
                    
  (IP 
    (NP-SBJ 
      (-NONE- *pro*))
                    
    (VP 
      (VV 可以)
                    
      (VP 
        (ADVP 
          (AD 有效))
                    
        (VP 
          (VV 抒解)
                    
          (NP-OBJ 
            (NN 焦虑)))))))
arg0: 
                    *pro* 
                
arg1: 
                    焦虑 
                
argm: 
                    有效