(IP (NP-SBJ (-NONE- *pro*))
(VP (VV 让)
(NP-OBJ (CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *T*-1))
(VP (VV 抱孙心切)))
(DEC 的)))
(QP (CD 两))
(NP (NN 老)))
(IP (NP-SBJ (-NONE- *PRO*))
(VP (VV 震惊)
(ADVP (AD 不已))))))
ARG0: *T*-1
REL: 抱孙心切