Frameset: f1

Frame:

 (IP (ADVP (AD 但))
  (PP-LOC (P 在)
	  (LCP (NP (NP (NN 政府军))
		   (CP (WHNP-1 (-NONE- *OP*))
		       (CP (IP (NP-SBJ (-NONE- *T*-1))
			       (VP (VA 猛烈)))
			   (DEC 的)))
		   (NP (NN 火力)
		       (NN 还击)))
	       (LC 之下)))
  (PU ，)
  (NP-SBJ (NP-PN (NR 安盟))
	  (NP (NN 武装)))
  (VP (ADVP (AD 不得不))
      (VP (VV 后撤)))) 

ARG0: *T*-1
REL:  猛烈