(IP (NP-SBJ (-NONE- *pro*))
(VP (VCD (VV 答)
(VV 曰))
(PU ：)
(NP-OBJ (QP (QP (CD ４)
(CLP (-NONE- *RNR*-1)))
(CC 至)
(QP (CD ７)
(CLP-1 (M 个))))
(NP (NN 钟头)))))
ARG0: *pro*
ARG1: ４ *RNR*-1 至 ７ 个 钟头
REL: 曰