( (IP (NP-SBJ (NN 品牌))
(PU ，)
(VP (VV 成为)
(NP-OBJ (DNP (NP (NN 追赶者))
(DEG 的))
(CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *pro*))
(VP (ADVP (AD 难以))
(VP (VV 企及)
(NP-OBJ (-NONE- *T*-1)))))
(DEC 的)))
(NP (NN 壁垒))))
(PU 。)))
ARG0: *pro*
ARGM-ADV: 难以
ARG1: *T*-1
REL: 企及