(IP 
  (NP-SBJ 
    (-NONE- *pro*))
                    
  (VP 
    (ADVP 
      (AD 早))
                    
    (ADVP 
      (AD 就))
                    
    (VP 
      (VV 听说)
                    
      (IP-OBJ 
        (NP-SBJ 
          (QP 
            (CD 一些))
                    
          (NP 
            (NN 欧元国)))
                    
        (VP 
          (ADVP 
            (AD 已经))
                    
          (VP 
            (VV 开始)
                    
            (VP 
              (PP-LOC 
                (P 在)
                    
                (LCP 
                  (NP 
                    (NN 商品))
                    
                  (LC 上)))
                    
              (VP 
                (VV 标明)
                    
                (NP-OBJ 
                  (NN 欧元)
                    
                  (NN 价格))))))))))
arg0: 
                    *pro* 
                
arg1: 
                    一些 欧元国 已经 开始 在 商品 上 标明 欧元 价格 
                
argm: 
                    就 
                
argm: 
                    早