( (IP (ADVP (AD 除此之外))
(PU ，)
(NP-SBJ (NN 下面))
(VP (VC 是)
(NP-PRD (CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *T*-1))
(VP (VV 不容置疑)))
(DEC 的)))
(NP (NN 事实))))
(PU ：)))
ARG0: *T*-1
REL: 不容置疑