( (IP (NP-SBJ (DP (DT 这)) (NP (NN 傻子))) (VP (VP (VV 懂得) (IP-OBJ (NP-SBJ (-NONE- *pro*)) (VP (VP (VV 吃穿)) (VP (VV 干) (NP-OBJ (NN 体力活)))))) (PU ,) (VP (ADVP (AD 但)) (VP (VPT (VV 读书) (AD 不) (VV 成))))) (PU 。))) arg0: *pro*