( (IP (IP (NP-SBJ (NN 村民)) (VP (VP (VV 堵路)) (VP (PP-ADV (P 与) (NP (NN 警察))) (VP (VV 冲突))))) (IP-Q (NP-WH-SBJ (PN 谁)) (VP (VV 该) (VP (VV 反思)))) (PU ?)))
ARG0: 村民 REL: 堵路