( (IP (IP (NP-SBJ (-NONE- *pro*))
(VP (VV 感觉)
(IP-OBJ (NP-SBJ (-NONE- *pro*))
(VP (VV 相谈甚欢)))))
(PU ，)
(CP (IP (NP-SBJ (NN 心里))
(VP (ADVP (AD 便))
(ADVP (AD 比较))
(VP (VA 有底))))
(SP 了))
(PU ，)))
ARG0: *pro*
REL: 相谈甚欢