(IP 
  (NP-SBJ 
    (ADJP 
      (JJ 唯一))
                    
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-1))
                    
          (VP 
            (ADVP 
              (AD 较))
                    
            (VP 
              (VV 让)
                    
              (NP-OBJ 
                (PN 他们))
                    
              (IP 
                (NP-SBJ 
                  (-NONE- *PRO*))
                    
                (VP 
                  (VV 烦心))))))
                    
        (DEC 的))))
                    
  (PU ，)
                    
  (VP 
    (VC 是)
                    
    (NP-PRD 
      (NN 全民)
                    
      (NN 健保))))
arg0: 
                    *PRO*