+-----COMP:N-N(of)----+     
     +SUBJ:+--OBJ:V-N-+            +MOD_ATT:+     
     |     |          |            |        |     
 IGF 1 increases inhibition of effector __NODE__ .
SUBJ:V-N (increase,1)
OBJ:V-N (increase,inhibition)
COMP:N-N(of) (inhibition,__NODE__)
MOD_ATT:N-N (__NODE__,effector)