+SUBJ:V-N+--OBJ:V-N-+                 
     |        |          |                 
 __NODE__ increases activation of pathway .
SUBJ:V-N (increase,__NODE__)
OBJ:V-N (increase,activation)

     +------OBJ:V-N------+                 
     |        +MOD_ATT:N-+                 
     |        |          |                 
 __NODE__ increases activation of pathway .
OBJ:V-N (__NODE__,activation)
MOD_ATT:N-N (activation,increase)