( (IP (NP-SBJ (NN 妈妈)) (VP (PP-LOC (P 在) (LCP (NP (NN 火车)) (LC 上))) (VP (VV 发觉) (IP-OBJ (NP-PN-SBJ (NR 清清)) (VP (VV 放屁)))) (PU ,) (VP (VV 问) (NP-IO-PN (NR 清清)) (IP-OBJ (NP-SBJ (-NONE- *PRO*)) (VP (VNV (VC 是) (AD 不) (VC 是)) (VP (VV 咬) (VP (VV 大便)))))) (PU ,) (VP (ADVP (AD 并且)) (VP (VV 说) (IP (IP (NP-PN-VOC (NR 清清)) (PU ") (NP-SBJ (PN 你)) (VP (VC 是) (CP-PRD (IP (NP-SBJ (PN 我)) (VP (VV 生) )) (SP 的)))) (PU ,) (IP (NP-SBJ (PN 我)) (VP (ADVP (AD 怎么)) (ADVP (AD 不)) (VP (VV 知道) (IP-OBJ (NP-SBJ (PN 你)) (VP (ADVP (AD 在)) (VP (VV 想) (NP-OBJ (PN 什么)))))))) (PU "))))) (PU ,)))
ARG0: *PRO*
REL: 大便