(IP (NP-SBJ (NN 酗酒))
(VP (ADVP (AD 已))
(VP (VV 成为)
(NP-OBJ (NP (CP (WHNP-2 (-NONE- *OP*))
(CP (IP (NP-SBJ (-NONE- *T*-2))
(VP (VV 滋生)
(NP-OBJ (NN 犯罪))))
(DEC 的)))
(NP (ADJP (JJ 主要))
(NP (NN 根源))))
(NP (NN 之一))))))
ARG0: *T*-2
ARG1: 犯罪
REL: 滋生