(IP (IP (NP-SBJ (DNP (NP (NN 父亲))
(DEG 的))
(NP (NN 胳臂)))
(VP (ADVP (AD 往外))
(VP (VV 弯))))
(PU ，)
(IP (NP-SBJ (-NONE- *pro*))
(VP (ADVP (AD 真))
(VP (VC 是)
(VP (VV 岂有此理))))))
ARG0: *pro*
ARGM-ADV: 真
REL: 岂有此理