( (IP (ADVP (AD 否则))
(PU ，)
(IP-SBJ (NP-SBJ (-NONE- *PRO*))
(VP (BA 将)
(IP-OBJ (NP-SBJ (NN 汽油税))
(VP (VV 设成)
(NP-OBJ (CP (WHPP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *pro*))
(VP (PP-MNR (-NONE- *T*-1))
(ADVP (AD 足以))
(VP (VV 实现)
(NP-OBJ (NP (PN 其))
(NP (NN 目标))))))
(DEC 的)))
(NP (NN 高度)))))))
(VP (VP (ADVP (AD 仍然))
(VP (VC 是)
(NP-PRD (DNP (ADJP (ADJP (ADVP (AD 更))
(ADJP (JJ 公平)))
(PU 、)
(ADJP (ADVP (AD 更))
(ADJP (JJ 便宜))))
(DEG 的))
(NP (NN 方法)))))
(PU ，)
(VP (ADVP (AD 并且))
(ADVP (AD 更加))
(VP (VV 有利于)
(NP-OBJ (NN 环境)
(NN 保护)))))
(PU ：)))
ARG0: *PRO*
ARG2: 汽油税
ARG1: 足以实现其目标的高度
REL: 设成