+----COMP:N-N(of)----+     
     +MOD_ATT:N+SUBJ:V_PASS-+COMP:V_PASS-+           +MOD_ATT:+     
     |         |            |            |           |        |     
 __NODE__ protein(s) is involved in catabolism of dietary __NODE__ .
MOD_ATT:N-ADJ (protein(s),__NODE__)
SUBJ:V_PASS-N (involve,protein(s))
COMP:V_PASS-N(in) (involve,catabolism)
COMP:N-N(of) (catabolism,__NODE__)
MOD_ATT:N-ADJ (__NODE__,dietary)