( (IP (ADVP (AD 而且))
(ADVP (AD 甚至))
(NP-SBJ (NN 专家们))
(VP (ADVP (AD 正在))
(VP (VV 思考)
(NP-OBJ (QP (CD 一)
(CLP (M 种)))
(CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *T*-1))
(VP (VV 似是而非)))
(DEC 的)))
(NP (NN 说法)))))
(PU .)))
ARG0: *T*-1
REL: 似是而非