(IP-Q (NP-SBJ (-NONE- *PRO*)) (VP (ADVP-WH (AD 如何)) (VP (VV 选种) (PU 、) (VV 藏种) (PU 、) (VV 嫁接))))
ARG0: *PRO* ARGM-ADV: 如何 REL: 选种