(IP (NP-SBJ (CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *pro*))
(VP (VV 填妥)
(NP-OBJ (-NONE- *T*-1))))
(DEC 的)))
(NP (NN 表格)))
(VP (VV 必须)
(VP (VV 放入)
(NP-OBJ (QP (CD 一)
(CLP (M 个)))
(ADJP (JJ 白色))
(NP (NN 信封))))))
ARG0: *pro*
ARG1: *T*-1
REL: 填妥