(NP-SBJ (CP (WHNP-1 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *T*-1))
(VP (ADVP (AD 曾经))
(PP-LOC (P 在)
(NP (NN 书房) ))
(VP (VV 看)
(AS 过)
(NP-OBJ (NN 老师) )
(IP (NP-SBJ (-NONE- *PRO*))
(VP (VV 篆刻))))))
(DEC 的)))
(NP-PN (NR 薛平南) ))
ARG0: *PRO*
REL: 篆刻