(IP 
  (PP-PRP 
    (P 由於)
                    
    (IP 
      (NP-SBJ 
        (NN 族人))
                    
      (VP 
        (VP 
          (ADVP 
            (AD 无法))
                    
          (VP 
            (VV 确知)
                    
            (NP-OBJ 
              (DNP 
                (NP 
                  (NN 琉璃珠))
                    
                (DEG 的))
                    
              (NP 
                (NN 由来))
                    
              (NP 
                (NN 年代)
                    
                (CC 与)
                    
                (NN 地点)))))
                    
        (PU ，)
                    
        (VP 
          (ADVP 
            (AD 也))
                    
          (ADVP 
            (AD 不))
                    
          (VP 
            (VV 知道)
                    
            (NP-OBJ 
              (DNP 
                (NP 
                  (NN 琉璃珠))
                    
                (DEG 的))
                    
              (ADJP 
                (JJ 传统))
                    
              (NP 
                (NN 制作)
                    
                (NN 技术))))))))
                    
  (PU ，)
                    
  (NP-SBJ 
    (DNP 
      (ADJP 
        (JJ 现存))
                    
      (DEG 的))
                    
    (NP 
      (NN 琉璃珠)))
                    
  (VP 
    (VC 为)
                    
    (IP-PRD 
      (NP-SBJ 
        (-NONE- *PRO*))
                    
      (VP 
        (VP 
          (VV 代代相传))
                    
        (VP 
          (MSP 而)
                    
          (VP 
            (VV 来)))))))
arg0: 
                    *PRO*