(IP 
  (NP-SBJ 
    (PN 他们))
                    
  (VP 
    (DVP 
      (VP 
        (VV 三五成群))
                    
      (DEV 地))
                    
    (VP 
      (VRD 
        (VV 议论)
                    
        (VV 起))
                    
      (NP-OBJ 
        (CP 
          (WHNP-1 
            (-NONE- *OP*))
                    
          (CP 
            (IP 
              (NP-SBJ 
                (-NONE- *T*-1))
                    
              (VP 
                (NP-TMP 
                  (NT 今天))
                    
                (ADVP 
                  (AD 正式))
                    
                (VP 
                  (VV 出台))))
                    
            (DEC 的)))
                    
        (NP 
          (PU 《)
                    
          (NN 证券法)
                    
          (PU 》))))))
arg0: 
                    他们 
                
arg1: 
                    *OP* *T*-1 今天 正式 出台 的 《 证券法 》 
                
argm: 
                    三五成群 地