(IP (NP-SBJ (-NONE- *pro*))
(VP (VV 听)
(DER 得)
(IP-EXT (NP-SBJ (CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *T*-1))
(VP (ADVP (AD 快))
(VP (QP-PRD (CD 八十)
(CLP (M 岁))))))
(DEG 的)))
(ADJP (JJ 老))
(NP (NN 镖客)))
(VP (VV 目瞪口呆)))))
ARG0: *OP* *T*-1 快 八十 岁 的 老 镖客
REL: 目瞪口呆