+-----COMP:N-N(of)----+    
     +MOD_ATT+SUBJ:V_PASS+COMP:V_PASS-+            +MOD_ATT:+    
     |       |           |            |            |        |    
 __NODE__ protein is involved in engulfment of apoptotic bodies .
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V_PASS-N (involve,protein)
COMP:V_PASS-N(in) (involve,engulfment)
COMP:N-N(of) (engulfment,body)
MOD_ATT:N-ADJ (body,apoptotic)