(IP 
  (NP-SBJ 
    (-NONE- *pro*))
                    
  (VP 
    (ADVP 
      (AD 却))
                    
    (ADVP 
      (AD 不))
                    
    (VP 
      (VV 知)
                    
      (IP-OBJ 
        (NP-SBJ 
          (NP 
            (ADJP 
              (JJ 浪漫))
                    
            (NP 
              (NN 传说)))
                    
          (NP 
            (NN 背後)))
                    
        (VP 
          (VV 埋藏)
                    
          (AS 著)
                    
          (NP-OBJ 
            (QP 
              (CD 一)
                    
              (CLP 
                (M 个)))
                    
            (CP 
              (WHNP-1 
                (-NONE- *OP*))
                    
              (CP 
                (IP 
                  (IP 
                    (NP-SBJ 
                      (-NONE- *T*-1))
                    
                    (VP 
                      (VV 距今)
                    
                      (LCP-OBJ 
                        (QP 
                          (QP 
                            (CD 四千八百)
                    
                            (CLP 
                              (M 年)))
                    
                          (CC 到)
                    
                          (QP 
                            (CD 两千八百)
                    
                            (CLP 
                              (M 年))))
                    
                        (LC 之间))))
                    
                  (PU ，)
                    
                  (IP 
                    (NP-TPC 
                      (-NONE- *T*-1))
                    
                    (NP-SBJ 
                      (NN 面积))
                    
                    (VP 
                      (VV 超过)
                    
                      (QP-OBJ 
                        (CD 十五)
                    
                        (CLP 
                          (M 平方公里)))))
                    
                  (PU 、)
                    
                  (IP 
                    (NP-SBJ 
                      (-NONE- *T*-1))
                    
                    (VP 
                      (PP-LGS 
                        (P 由)
                    
                        (NP 
                          (QP 
                            (CD 数十)
                    
                            (CLP 
                              (M 个)))
                    
                          (NP 
                            (NN 文化)
                    
                            (NN 点))))
                    
                      (VP 
                        (MSP 所)
                    
                        (VP 
                          (VV 组成))))))
                    
                (DEC 的)))
                    
            (NP 
              (ADJP 
                (JJ 大型))
                    
              (NP 
                (NN 遗址)))
                    
            (NP 
              (NN 群))))))))
arg0: 
                    *T*-1 
                
arg1: 
                    四千八百 年 到 两千八百 年 之间