(IP (NP-SBJ (-NONE- *pro*))
(VP (VV 使)
(NP-OBJ (NP-PN (NR 龙开河))
(NP (NN 下游段)))
(IP (NP-SBJ (-NONE- *PRO*))
(VP (VV 成)
(AS 了)
(NP-OBJ (CP (WHPP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *pro*))
(VP (PP-LOC (-NONE- *T*-1))
(NP-TMP (NT 历年))
(ADVP (AD 紧张))
(VP (VV 抗洪))))
(DEC 的)))
(NP (NN 战场)))))))
ARG0: *pro*
ARGM-LOC: *T*-1
ARGM-TMP: 历年
ARGM-ADV: 紧张
REL: 抗洪