(IP (ADVP (AD 有时候))
(PU ，)
(NP-PN-SBJ (NR 王壮为))
(VP (VP (ADVP (AD 还))
(VP (VV 会)
(VP (ADVP (AD 故意))
(VP (VV 捉弄)
(NP-OBJ (NN 学生))))))
(PU ，)
(VP (VV 要)
(NP-OBJ (PN 他们))
(IP (NP-SBJ (-NONE- *PRO*))
(VP (VCD (VV 用功)
(VV 精进)))))))
ARG0: *PRO*
REL: 精进