(IP (NP-SBJ (-NONE- *pro*))
(VP (IP-CND (NP-SBJ (-NONE- *PRO*))
(VP (ADVP (AD 只有))
(VP (VP (VP (VV 回到)
(NP-OBJ (NN 历史)
(NN 背景)))
(VP (PP-DIR (P 对)
(NP (CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (NT 当时)
(NN 人))
(VP (MSP 所)
(VP (VP (VV 提出)
(NP-OBJ (-NONE- *RNR*-2)))
(PU 、)
(VP (VV 引介)
(NP-OBJ-2 (-NONE- *T*-1))))))
(DEC 的)))
(DP (DT 每)
(CLP (M 个)))
(NP (NN 学术)
(PU 、)
(NN 学说))))
(ADVP (AD 好好))
(VP (VV 理解))))
(PU ，)
(VP (ADVP (AD 再))
(VP (VV 来)
(VP (VV 解读)
(NP-OBJ (NT 五四))))))))
(PU ，)
(ADVP (AD 才))
(VP (VV 能)
(VP (VV 说)
(IP-Q-OBJ (NP-SBJ (-NONE- *pro*))
(VP (VV 可以)
(VP (PP-DIR (P 从)
(LCP (NP (NN 历史))
(LC 中)))
(VP (VP (VP (VV 汲取)
(NP-OBJ (DNP (DP-WH (DT 什麽样))
(DEG 的))
(NP (NN 经验))))
(PU 、)
(VP (VV 采取)
(NP-OBJ (DNP (DP-WH (DT 什麽样))
(DEG 的))
(NP (NN 态度)))))
(VP (VV 对应))))))))))
ARG0: *pro*
REL: 对应