+--MOD_ATT:N-N-+                                              
  |      +MOD_ATT+SUBJ:V_PASS+COMP:V_PASS-N(+                   
  |      |       |           |              |                   
 GO : __SP__ __NODE__ is involved in metabolization in vitamin .
MOD_ATT:N-N (__NODE__,go)
MOD_ATT:N-ADJ (__NODE__,__SP__)
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,metabolization)