(IP (IP-ADV (NP-SBJ (NN 故事)) (VP (VV 说完))) (NP-SBJ (NN 下课) (NN 铃)) (VP (VV 响)))
ARG1: 故事
REL: 说完
(IP (NP-SBJ (-NONE- *pro*))
(VP (IP-ADV (NP-SBJ (-NONE- *PRO*))
(VP (VV 说完)))
(PU ,)
(VP (VV 哀叹)
(ADVP (AD 良久)))))
ARG0: *PRO*
REL: 说完